Glossary
Abrasion Resistance-
The ability to resist wear from the continuous rubbing of the fabric against
another surface. Garments made from fabrics that possess both high breaking
strength and abrasion resistance can be worn often and for a long period of
time before signs of wear appear.
ABS- A black thermosetting polymer with high impact strength.
Absorbency- The ability of a fabric to take in moisture. Absorbency is a very important
property, which affects many other characteristics such as skin comfort, static
build-up, shrinkage, stain removal, water repellency and wrinkle recovery.
ACP- Automatic Colt Pistol, a term used by Colt for cartridges used in Colt
firearms.
Action- The portion of the firearm where the round is loaded, fired, and unloaded
Akwadyne- Akwadyne nylon, is the newest generation of performance fabrics utilizing
thermoregulatory action to keep you dry and cool or warm -giving you the best
of both worlds. Its unique properties give the wearer comfort and performance
over a wide range of temperatures
Almite- A coating used on aluminum handles similar to anodizing. Resistant to
scratching and marring, it can also be tinted to any color for visual appeal.
Alumina Ceramic- The compound used for Spyderco sharpening stones. It is a ceramic-bonding agent
mixed with alumina particles (synthetic sapphires), shaped, then kiln fired at
temperatures in excess of 3000 degrees F.
Ambidextrous- Using both hands with equal ease. Pertaining to knives, it is a knife that is
not solely designed for a left-or right-handed person but can be used with
equal ease by both hands.
Angle Adjustment- The ability to adjust the angle or cant that a holster is worn with, to suit
ones preference
Annealing- To soften metal by heating; especially, to soften copper and brass bullet
jackets and brass cartridge case necks to prevent cracking from work hardening
by repeated forming and resizing
Anodize- An electrolytic process used to coat aluminum and other materials with a
protective and often decorative film.
Anodized Aluminum- Subjecting aluminum to electrolytic action which coats the aluminum with a
protective and decorative film.
Antimony- A metallic element mixed with lead to form a lead alloy for the purpose of
hardening the lead. Most commercial manufactures use up to 3% to 6% antimony in
their lead bullet cores
Anvil- metallic point against which the explosive compound of a primer is driven into
by the firing pin, striker, or hammer of a firearm to produce a detonation to
ignite the gunpowder
Applique- The carbon-fiber look outer layer of the carbon-fiber finish holsters. Made of
a micro-fiber-nylon, it is impervious to chemicals and sunlight.
Automatic knife- a knife with a folding or sliding blade that opens by means of spring pressure,
commonly known as a switchblade. The blade is typically released by a button
or other mechanism in the handle of the knife.
Back Lock- Locking system positioned on the spine of the handle that uses a rocker arm,
which pivots in the center. A notch on one end of the arm connects with a notch
on the blade's tang, locking the blade open.
Balisong/Butterfly- A knife design believed to have originated in the UK, brought to the
Philippines by English sailors, and was adopted and popularized in the
Philippines. Often used in Filipino martial arts. The knife has two separate
handle sections that rotate round the blade's pivots to create a handle and
then rotate back covering and protecting the blade when closed.
Ball Bearing Lock- A compressive lock wedging a stainless steel ball bearing between a fixed anvil
and the blade tang. The ball is also utilized to detent the blade into the
closed position.
Ballistic Coefficient- The index of a bullet's ability to overcome resistance in flight relative to
the performance of a standard bullet used to compute ballistic tables.
Mathematically, the ratio of a bullet's weight to the product of the square of
its diameter and its form factor
Ballistic Tip- A unique rifle bullet designed by John Nosler that combines the qualities of
the Nosler Solid Base bullet with a polycarbonate tip that resists deformation
in the magazine or feed ramp of a rifle during recoil. These bullets have a
higher ballistic coefficient than most other bullets of their equivalent size
and weight due to the sharp, aerodynamic tip
Ballistics- The science which studies the behavior of projectiles in motion. Interior
Ballistics concerns itself with events inside a firearm from primer ignition
through the projectile's departure from the muzzle; Exterior Ballistics deals
with the motion of the projectile after it leaves the muzzle of the firearm to
just before it hits the target. Terminal Ballistics deals with the bullet when
it hits and enters the target.
Barrel Length- The length of a handgun barrel is often used to help fit a weapon to a holster.
For a semi-automatic pistol, it the length from the muzzle (front end of
barrel) to the rear of the chamber (where the cartridge sits). For a revolver,
it is from the muzzle to the front of the cylinder.
Batch- Refers to a knife model that is made in small numbers. If the model is received
well another batch or more may be produced.
Belt Loop- The belt mounted platform that many holsters are attached to. This allows you
to thread the belt through the belt loop and wear the holster.
Belt Slot- The slots in a belt loop through which the belt is threaded.
Belt Slot Tab- The adjustable tab in our carbon-fiber holster belt loops. This tab allows the
slot to be adjusted for an exact fit with any width belt.
Bench Rest- A solid support, usually a bench, for a firearm, eliminating human error and
therefore testing the firearm and ammunition. Also a type of competition
shooting emphasizing extreme accuracy
Bi-Directional Texturing- A texture molded into an FRN handle, which is a series of graduating, sized
forward and backward steps that radiate outward from the center of the handle.
This texture provides resistance to slipping and sliding when gripped in the
hand.
Bite Me Bite Valve- After market bite valve manufactured for BlackHawk by TFO. One of most popular
in recreational industry.
Blowback Action- A system where the pressure and energy from the cartridge discharge pushing
rearward against the empty cartridge case is used to operate the unloading and
loading cycle of a semi-automatic or automatic firearm
Bolster- A piece of metal, generally nickel silver or stainless steel, that is located
at one or both ends of a folding knife handle.
Bolt- That part of a rifle or shotgun which houses the striker and the case extractor
mechanism and rotates to lock the cartridge or shell in the firearm's chamber
Bolt Action- The two main types of bolt action are the turn bolt and straight pull. The bolt
action is manually operated by means of a steel rod or handle-like assembly
that contains the means to lock a cartridge into the barrel or chamber (located
at the rear of the chamber into which the cartridge or propellant is inserted),
the firing pin, and the mechanism to extract and eject the spent cartridge case
Boltaron- A recycled ABS/acrylic PVS extruded alloy sheet material used for making
sheaths. It has excellent impact strength and abrasion, chemical, and fire
resistance properties.
Boltaron- A recycled ABS/acrylic PVS extruded alloy sheet material used for making
sheaths. It has excellent impact strength and abrasion, chemical, and fire
resistance properties.
Boned- Leather holsters were traditionally shaped and formed to a particular pistol
with the joint end of a small bone. Modern leather or plastic tools have
replaced animal bones, but the term is still used. This is still done by hand
and is part of the craftsmanship of a really fine leather holster.
Bore- The inside of a firearm's barrel. In rifled firearms the bore diameter is the
original dimension of the barrel before the rifling grooves are cut or swaged
Bowie-Shape- A blade with an upswept, curving tip that is double-edged near the point. It is
named for Colonel James Bowie who made this shape famous in the 19th century
American west.
Breech- The rear portion of the barrel. The breech contains the chamber into which a
cartridge is loaded
BTS- The BlackHawk Tactical System (BTS) of affixing pouches and accessories to
tactical gear is the most advanced MODULAR fastening method in the industry.
Hook and loop fastener is on both inside sides of the closure flaps, and
prevent the pouch from moving laterally. Once secured, they are practically
impossible to tear off. This is the industry's most versatile, secure and light
weight MODULAR attachment system. All BlackHawk pouches have the BTS System as
standard equipment. All BlackHawk Vests have the BTS system
BTS Belt Loops- The BlackHawk belt loops for duty and tactical belt accessories. These allow
the placing and removal of accessories without having to slide the item all the
way around the belt. These also lock securely onto a Velcro-lined belt.
Buckshot- Large lead pellets ranging in size from .20 inches to .36 inches in diameter
used in shotshells
Bullet Drop- The normal fall from a bullet during its flight from the firearm to the target
resultant from the influence of gravity
Bullet Jacket- A skin wrapped around the lead core of a bullet to protect the core from barrel
friction and to control the expansion of the bullet on impact
Bullet Jump- The distance a bullet must travel from its place in the cartridge case to the
initial engagement of the barrel's rifling.
Bullet Mushroom- A bullet that has expanded upon impact to a mushroom-like shape
Cabretta- Thin, fine leather made from the skin of hair sheep. It is used in gloves
needing superior tactility and dexterity.
Caliber- The size of the bullet that a weapon fires. For us, it is important in the size
of the particular weapon, which affects what holster it fits, and the size of
the magazine that goes in the pistol, which affects what mag pouch will fit.
Cant- The angle at which a holster is carried on the body. Butt forward means that
the grip of the weapon is tilted toward the front. Muzzle forward means that
the grip of the weapon is tilted to the rear. Straight drop, or neutral cant
means that the pistol is straight up and down on the waist.
Caping- A term to describe the careful and detailed cutting and removing of the hide
from a game animal for the purpose of taxidermy. More precisely it refers to
removing the skin from the head, shoulders and neck.
Carbide- A hard, sharp carbon/iron material used where a very hard material is needed
such as in machining or drilling steel.
Carbon Fiber- A woven composite of graphite fibers fused in an epoxy resin. This material
provides light weight and high strength. This material also gives a three
dimensional or hologram like appearance.
Carry Angle or Carry Mode- see Rake
Cartridge- A complete unit of assembled ammunition: case, propellant powder, primer, and
bullet. Commonly applied only to rifle and pistol ammunition, but occasionally
to shotshells
Centerfire (CF)- A type of ammunition whose primer is centrally positioned in the base of the
cartridge case and generally reloadable
Chamfered- Grinding a secondary flat surface on a corner, creating a beveled edge.
Commonly done to the edges of a knife's handle or the inside radius of a hole
making a smoother contact spot for hand/fingers.
Chamude- A soft and flexible synthetic leather with a suede surface texture which
breaths like genuine leather. It is machine washable.
Charge- The amount of powder loaded in a cartridge case, as "a charge of 23.5 grains of
BL-C"
Choil- A choil is a round cut out separating the cutting edge from the ricasso. It is
also used to describe a cut out, molded or formed area where the handle and
blade meet which positions/guards the index finger while gripping the opened
knife.
Choke- A constriction at the muzzle of a shotgun barrel, designed to control the
spread, or dispersion, of the shot charge
Chris Reeve Style Integral Liner Lock- Custom knifemaker Chris Reeve developed upon, then popularized the Walker Liner
Lock in an integral form. An integral liner lock functions as a traditional
liner lock with the exception that the liner is actually comprised of part of
the handle scale.
Clarino- A soft and flexible synthetic leather with a suede surface texture which
breaths like genuine leather. It is machine washable. Similar to Clarino
Clip- A device which holds ammunition to be charged into a magazine. Clips may be
inserted into the firearm and remain there during firing, as with the M1
Garand, or may be used only to aid in charging the magazine, as with the 1903
Springfield, M14, or M16s. This later type is referred to as a "stripper clip",
while the former is called a "charger clip."
CLIPIT- Spyderco's trademarked term for their line of folding knives which feature a
pocket clip.
Clip-Point Blade- A blade, ground on the top (spine) in an angled or sweeping line downward. The
underside (where the sharpened edge is) is ground upward. The two angles meet
at the tip and where the angles meet determines the depth of the blade's belly.
Cocobolo- Hardwood from the Cocobolo tree, ranging in color from bright orange to deep
red and dark purple. Its grain and fine texture are relatively easy to work,
polishes to a high sheen and is popular as an inlay or embellishment on knife
handles.
Column- The way that cartridges are held in a magazine. See Single Column and Double
Column
Combat Grip- The grip on the butt of a pistol that you want to have when you are shooting
the weapon. If you cannot establish a full grip when you draw the pistol, you
have to adjust your grip as you raise the pistol. Under stress, this is
difficult to do and may cause you to drop the weapon or not be able to hit the
target. All of our holsters are made to allow a full grip from start to finish.
CombinationEdge- Blade that is partially serrated, partially plainedge.
Compensator- A device fitted to the muzzle of a firearm to reduce recoil or muzzle rotation.
Usually applied to such devices when fitted to a handgun. Also see muzzle brake
Compression Lock- A Compression Lock uses a small piece of metal that is inserted, from the side,
in between the blade tang and the stop pin (or anvil pin).
Concealex- A thermoplastic developed for a knife as well as the firearms industry. This
material is thin, and resistant to chemicals, and other solvents. The material
is flexible, and has shape retention which can also be blended to make various
colors and texture patterns.
Contour Stitched- Contour stitching is when the stitching on a leather holster closely follows
the outline of the pistol. This helps in both fit and appearance and is one of
the marks of a high quality leather holster.
Cordura- Cordura is a certified fabric from INVISTA. It is used in a wide range of
products from luggage and backpacks to boots, to military wear and performance
apparel. It is long lasting, resistant to abrasions, tears and scuffs. Spyderco
utilizes this product on our SpyderPacs.
Core- The central portion of a jacketed bullet
Cowhide- One of the most durable garment leathers, providing the best value. This
leather type can be made in all weights and textures. New ways of finishing
cowhide produce a sensual softness and suppleness. Cowhide is available in a
wide range of shades and textures.
Cross Draw- Positioning the holster on the waist opposite your normal gun side. This
requires you to reach across the body to draw the pistol. Cross draw.
Cuff- The cuff is the part of the glove extending beyond the palm that covers the
wrist and part of the forearm
Cup or C.U.P.- Abbreviation for "Copper Units of Pressure". This relates to the pressure
measured in a copper crusher testing system. There is no direct correlation
between CUPS and pressure expressed in pounds per square inch (PSI), and no
conversion factor to extrapolate one from the other.
Dagger / Double Edge- A double edge blade has been sharpened on both sides which leads to a sharpened
point.
Damascus- Two types of steel that are folded repeatedly during the forging process to
produce very attractive and expensive steel. This new steel retains the
properties of the two parent steels.
David Boye Dent- Custom knifemaker David Boye removed a small arc or dent of metal from the lock
bar lever of his knives. This removed piece lessened the possibility of
gripping the handle hard enough to depress the lock and accidentally unlock the
blade while using the knife.
Detent- 1. A minute divot or dimple machined into the blade tang. A ball bearing drops
into the detent hole when the knife is in the closed position, holding the
knife blade closed inside the handle. 2. A small button or protrusion that
sticks slightly into the trigger guard of a pistol and allows a certain amount
of retention on the pistol within the holster.
Diamond Coating- The mechanical entrapment of diamond crystals into a metal substrate. This
process operates by depositing metal, layer by layer, from a plating solution
until enough metal is built up around the diamond crystals to hold them in
place.
Diamond-Like Coating (DLC)- a non-reflective, black tungsten coating that is applied to knife blades and
other surfaces to provide superior corrosion resistance. The permanent bonding
of the DLC coating and its high hardness also increase wear resistance.
Double Column/Stack- When the cartridges in a magazine are held in a staggered or side-by-side
column or stack, as in a wider high-capacity magazine. This makes for a wider
magazine, requiring a wider bodied mag pouch. The magazine narrows at the top,
so that only one cartridge feeds out of the top of the magazine.
Double Flat-ground- A blade that is ground flat on both sides of the blade, tapering to an edge
with no radius.
Double Needle Machine Trim Tape- Strength/Quality/Cosmetics
Dram Equivalent- In shotshells, a term used to indicate that a charge of smokeless powder
produces the same velocity as a given number of drams of black powder. One dram
equals 27.3 grains
Drift- Slight deviation from a projectile's initial flight course caused by its
rotation
Drop or Drop-Leg Holster- see Tactical Holster
Drop Point Blade- A drop point blade has a tip which lowers slightly to the tip of the blade.
Along with the Clip Point blade this blade also usually features a larger belly
on the blade for better slicing abilities.
Drum Dyed- When leather hides are placed in a huge barrel shaped drum and tumbled for 24
to 48 hours with the leather dye in the drum. This action forces the dye into
the leather completely. This is one of the marks of a really good leather
holster versus most holsters which are merely dipped in the dye (dip dyed) or
brushed or sprayed with dye.
EDC- An acronym for Everyday Carry meaning a knife that is carried and used daily.
Ejection Ram- Also called the knock-out punch or K.O. rod; this is the steel rod placed in
the top of a reloading press type of bullet swage die which can be struck with
a mallet to eject the bullet or seated core. It is used to press on the
internal punch, although in some die designs it can be made an extension of the
internal punch. It is not used in self-ejecting press systems
Elasticity- The ability to increase in length under tension and then return to the original
length when released.
Elevation- Vertical sight adjustment to bring the point of aim up or down to the point of
impact
Embellishment- Term used to describe personalized engraving or additional ornamentation added
to a knife after it is manufactured.
EMT- Acronym for Emergency Medical Technician.
Ergonomics- The applied science of equipment design intended to maximize productivity by
reducing operator fatigue, safety and discomfort. Knives which are designed to
be comfortable and less fatiguing to use are labeled "ergonomic."
Eye Relief- The distance the eye must be held from the rear (ocular) lens or eyepiece of a
telescope in order to obtain a full field of view
False edge- a sharpened edge on the back (spine) side of the knife, normally near the
point. If unsharpened, it is called a swedge.
Far Zero- The second point at which the bullet path crosses the line of sight. This is
the commonly referred to "zero" for a given firearm, at which the point of aim
and point of impact coincide
Fiberglass Reinforced Nylon (FRN)- A nylon polymer mixed with glass fiber that is then injected into a mold for
making lightweight knife handles.
Finger Choil- A purposeful and specific area/curve cut out between the blade and handle. It
creates a grip position point closer to the cutting edge for better control
while cutting.
Firing Pin (striker)- That part of a firearm which the trigger/sear mechanism releases to strick the
primer of a cartridge and detonate it. More accurately termed a striker in most
bolt action rifles
Flat Point- A round nose variation used in rifles with tubular magazines
Flat-Grind (Full)- A knife's edge that tapers from the cutting edge all the way to the blade's
spine that is ground completely flat without a radius.
Flat-Saber Grind- A knife's edge, ground completely flat without a radius that tapers from the
cutting edge to a grind line down the center of the blade. Unlike a Full Flat
Grind, which tapers from the cutting edge all the way to the blade's spine the
Flat Saber only is flat ground just to the grind line.
Foot-Pound (ft.-lb.)- A unit of work; the energy required to lift one pound one foot.
Forcing Cone- The section of the revolver barrel at bullet diameter where the rifling starts
at an angle and continues until the angled riflings stop at bore diameter.
Fourchette- The piece of leather sewn between the fingers on some kinds of gloves. (also
known as the sidewall or gusset)
FPS (fps)- Feet per second, a measure of velocity in the English system. Also feet/sec.,
ft./sec., or fs
Frame Lock- A folding knife locking mechanism similar to a liner lock, but constructed as
an integral part of one of the handle frame pieces. Its operation is identical
to a liner lock, but because the lock bar is constructed of thicker material,
it is typically stronger than a liner lock mechanism.
FRN (Fiberglass Reinforced Nylon Resin)- A nylon polymer mixed with glass fiber which can be injection molded into a
handle.
Full Flat-ground- A flat grind leaves a flat surface, that flat surface if ground from edge to
spine is considered a full-flat grind. If that flat surface goes from the edge
to somewhere in the middle of the blade it would be considered a flat saber
grind. Spyderco uses both types of flat-grinds. Full-flat is found on our C36
Military Model, flat-saber-grind can be found on our C11 Delica and C10
Enduras.
Full Grip- see Combat Grip
Full Metal Jacket- FMJ's have thick, tough jackets of nickel silver or copper clad steel and has
the base open to the lead.
G-10- An epoxy filled woven "E" glass composite reinforced with glass fiber that
gives exceptional strength and resistance to fractures in extreme temperatures.
It comes in a variety of colors. Most commonly seen is black.
Gas Operated- In firearms, a gun system which utilizes a portion of the gases produced by the
powder's combustion to cycle the action. The military M1, M14, and M16 are all
examples of gas operated weapons
Gauge- The Unit of measurement of the bore of a shotgun. The gauge is determined by
the number of pure lead balls of that diameter that add up to one pound.
Gauntlet Cuff- A glove cuff designed for extra protection for the forearm. Usually a 4 and one
half cuff. Slides on and off easily and allows for maximum movement of
forearm.
GMAK- Gas Mask Adapter Kit- add on product that allows users to switch from our bite
valve to a gas mask environment. Not approved for lethal environments.
Grain- 1. The smallest unit of the British and U.S. system of weights. One pound
avoirdupois equals 7,000 grains 2. The side of the leather that had the hair,
i.e. the outside. Full grain has the original surface, whereas corrected grain
has been abraded to make the leather smoother and more uniform. It is regarded
for its soft, grainy texture and appearance.
Grip- The hold on a pistol obtained by the shooters hand during the draw from the
holster and during the shooting of the weapon.
Group- The distribution of bullets on a target fired with a single aiming point and
sight setting. Group size is expressed as the distance between centers of the
farthest holes and is most easily determined by measuring the extreme spread
from outside to outside and subtracting one bullet diameter
Gusset- The piece of leather sewn between the fingers on some kinds of gloves. Also
known as the sidewall or fourchette.
Gut Hook- A sharpened "hook" which lies on the spine of a hunting knife blade. This
design allows the hunter to field dress the animal without puncturing the
animal's intestine.
Half-Jacket- A swaged lead bullet that has a jacket covering half the bullet with the
remainder of the lead exposed
Hamaguri Grind- (Also called Appleseed Grind or Moran Grind): is a convex grind.
Handguard- Protrusion/expansion on the knife's handle proximal to the blade keeping the
hand safely positioned on the handle inhibiting sliding forward.
Hangfire- An inordinate delay between the striking of the primer and powder ignition
Hawkbill Blade- A blade shaped with a sharply curved hook, rather like a talon. The inside edge
of the curve is where the sharpened cutting edge is located.
Hawktex- Impregnated non-slip rubber compound affixed to sniper mats, shoulder straps,
and vests if configuration allows. Will not slip when wet.
HBWC- Hollow Base Wadcutter. A very accurate type of cylindrical lead target bullet
with a hollow base which, when fired, expands to fill the bore, aiding in
accuracy
High Ride Belt Loop- a belt loop on a holster that allows the holster to ride fairly high on the
side, for better concealment.
HIPORA- A waterproof film with polyurethane coating. Numerous micro pores are placed
all over the polyurethane coating which shut out water from the outside, yet
allow the moisture or warm steam from the body to exit. Glove liners made with
HIPORA are waterproof, windproof and breathable all at the same time and will
keep hands dry and comfortable.
Hollow Point (HP)- A type of bullet having an opening in the nose. Hollow points may be of either
a hunting, or target style. Contrary to popular opinion, hollow point are not
always designed to expand on impact. Match grade hollow point target bullets,
for example, rarely exhibit any expansion.
Hollow-ground- Edge that is ground with a radius leaving a concave shape above the cutting
surface.
Hook Blade- Hook Blade - A hook blade curves with the sharpened area on the concave side.
Hot-Cor- The registered trademark for Speer's exclusive process of manufacturing
flat-base rifle bullets. A molten core is poured into a clinically clean jacket
and then the bullet is immediately swaged to shape, with a resulting tight bond
between core and jacket
HydraStorm Compatible- This simply means that any BlackHawk product with this designation can
incorporate a HydraStorm Hydration System. Most items with this designation
have an internal sleeve that allows a HydraStorm Hydration System to be placed
inside. There is also a routing system for the drinking tube.
Indexing- "Locating" mark, also used for controlled rotation of the open knife, while
gripped in the palm, from one hand-hold to another, e.g., rotating from a
forward grip to a reverse grip.
Integral Pocket Clip- Pocket clip that is molded as part of (integral to) the handle rather than a
separate component attached with screws. Found on Spyderco model C17 the
Catcherman.
IVS- Microban is an antibacterial protection technology that can be durably
incorporated into plastic, textile, rubber and other materials to inhibit the
growth of bacteria, mold and yeast that cause unpleasant odors, stains, food
poisoning and allergies.
Jacket Slot Belt Loop- This refers to a type of belt loop, usually used on a duty holster that drops
the holster down so that the grip of the pistol is even with the belt. It also
sets the pistol far enough from the waist so that a jacket can go down between
the pistol and the waist line. Hence the term.
JHC- Jacketed Hollow Cavity. A line of expanding handgun bullets designed by Sierra.
JHCs are distinguished by having an internal cavity larger than the opening at
the meplat
JHP- Jacketed Hollow Point. A type of jacketed bullet with a hollow space in the tip
Jigged Bone- Derived from deceased animals, generally the chin bone of a cow. The bone is
generally dyed and surface texture is obtained by cutting grooves into the
bone.
JTC- Jacketed Truncated Cone. A type of jacketed, flat point bullet as opposed to
round nose (usually a pistol bullet)
Kevlar- KEVLAR is one of the most important manmade organic fibers ever developed. It
is 5 times stronger than steel on an equal weight basis, yet, at the same time,
is lightweight, flexible and comfortable. Fibers of KEVLAR consist of long
molecular chains produced from poly-paraphenylene terephthalamide. The chains
are highly oriented with strong interchain bonding which result in a unique
combination of properties
Kick- The unsharpened portion along the underside of the knife blade where the edge
begins. Keeps the blade "kicked out" so the edge does not hit the back spacer.
Kinetic Opener- A horn or protuberance on the top portion of a knife blade by which the blade
may be opened when leveraged against something solid, i.e. an opponent's body.
Similar to the opening devices found on straight razors.
Kissing zippers- Protective cover over zippers to prevent dirt and abrasion
Kraton- A rubbery thermoplastic polymer used as a flexible inlay on knife handles for
enhanced grip.
Kydex- a thin thermoplastic material that is resistant to chemicals, solvents and
other substances. When heat formed, it retains its shape even in extreme
conditions and therefore makes an ideal material for knife sheaths
Lanyard Hole- A hole placed in the end of a knife handle opposite the blade. Originally used
by sailors who would place a cord through such a hole in their knife to keep
from losing it overboard. MBC: An acronym for Martial Blade Craft.
Leather- A hide or skin that has been preserved by a chemical process called tanning.
Leather is the most ancient form of clothing known to man and only certain
types are adaptable for gloves.
Left/Right-Hand Carry- Knife clip that is manufactured to affix to either side the knife positioning
the folder for use by left- and right-handed people.
LEO- Acronym for Law Enforcement Officer.
Level 1/Level 2/Level 3- This refers to the levels of retention in a holster. Level 1 is a single method
of retention, Level 2 is two methods and Level 3 is three methods. Our Standard
carbon-fiber holster is a Level 1, as it has the pressure adjustable detent
holding the pistol in. The SERPA holster is a Level 2, since it also adds the
SERPA active retention feature to the detent.
Line Of Sight (LOS)- The straight line through the sights of a firearm to the aiming point
LinerLock- Locking system developed by custom knifemaker Michael Walker. The blade of a
knife is locked open by a leaf-like spring that butts up against the tang of
the blade.
Lubricant- Any substance used to reduce friction. Specific types are used for firearm
mechanisms, cast bullets, or case resizing
M-3 or M-6 Light- One of various weapon mounted lights that attach to the weapon by means of a
Picatinny Rail. Also, see Picatinny Rail.
Mag or Magazine Pouch- The carrier that allows you to carry a spare magazine for the pistol on your
person
Magazine- An ammunition reservoir from which cartridges are fed into a firearms chamber.
Magazines may be integral, as in the 1903 Springfield, or may be detachable, as
in M14 and M16 series of weapons. Although the terms are frequently used
interchangeably, a clip and a magazine are not the same thing
Magnum- A cartridge or firearm of greater power and capacity than earlier standards in
the same caliber
Martial Blade Craft (MBC)- MBC is the practice of combative arts for self-protection, physical
conditioning and control and coordination of the body. MBC's ultimate goal is
to train professionals to "stop the bad guy from hurting innocents."
Maximum Ordinate (Max Ord)- (Maximum Ordinate) or Mid-Range trajectory. The point at which the bullet
reaches its greatest vertical distance above the line of sight. Usually
occurring between 50% to 60% downrange
Micarta- A composite of linen or paper fabric in an epoxy resin used as a handle
material. It is incredibly lightweight, durable and visually appealing. It can
be bead blasted or polished, changing its appearance.
Middle-Finger Release- When the retention method used by a holster requires the user to release it
using their middle finger, during the draw. This makes the user draw the weapon
from the holster with the ring and little fingers, the weakest fingers on the
hand.
Milspec- A contraction of the term military specification the rigorous standards of
equipment performance and construction specified by the armed forces and
required for adoption of a specific piece of equipment.
Minute Of Angle (MOA)- Minute of angle (MOA) refers loosely by shooters as an inch at 100 yards. It is
more accurately, the distance of a line that is made from point A to point B of
an angle of one minute of one degree at a distance of 100 yards.
Misfire- A cartridge which fails to fire after its primer is struck
Modified Leaf Pattern- Unlike a traditionally leaf-shaped blades, Spyderco offers several models in
this basic blade shape but with variations such a distinctly pointed tips,
spine cusps and swedge grinds.
Muzzle- The end of the barrel
Muzzle Blast- The release of gas from the muzzle following the bullet's departure from the
barrel. It always produces noise and is often accompanied by light called
muzzle flash
Muzzle Energy (ME)- Foot pounds of energy of a projectile at the muzzle of a firearm
Muzzle pressure- Gas pressure in the barrel at the muzzle at the instant the bullet leaves the
muzzle
Muzzle Velocity (MV)- The speed of a projectile at the muzzle of a firearm
Nalgene Compatible Fill Port- The design of fill ports starting in 2005. It is the same design as a Nalgene
bottle. This makes the fill port compatible with aftermarket filtration
systems.
Neck knife- A knife specifically designed to be carried inverted in a sheath worn on a
chain or cord around the neck
Neoprene- A synthetic rubber made by the polymerization of chloroprene that has superior
resistance to oils and chemicals and is widely used for special-purpose
clothing (as gloves and wet suits).
Nesting- Hollowing out a section in G-10 or other handle material on the inside of the
handle where the lock and or liner is then inset/inlayed and fitted into the
hollow section. Nesting increases strength and creates a thinner overall
profile to the knife.
NOMEX by DuPont:- This is an extraordinary fiber with a combination of high-performance heat and
flame resistant properties and moderate cut resistance. NOMEX has outstanding
high-temperature resistance and low thermal conductivity. It will not burn,
melt, or support combustion. It will not decompose until exposed to
temperatures exceeding 800-900F. When exposed to intense heat, the fibers
carbonize and thicken, increasing the protective barrier between the skin and
heat source to minimize burn injury. This protective barrier stays supple and
flexible until it cools, giving the wearer valuable extra seconds of protection
to escape. While KEVLAR is about 40% more cut resistant, NOMEX is more cut
resistant than leather and equal weight cotton. NOMEX is more commonly used in
heat/flame resistant garments than KEVLAR because of its superior textile
characteristics. NOMEX garments are more comfortable to wear than those made
of Kevlar or other heat/flame resistant fabrics and have superior feel and
dexterity.
Non-corrosive (Primer)- Primers made without potassium chlorate, a chemical which when oxidized forms a
water-attracting salt which induces bore rusting. American primers for sporting
ammunition have been almost entirely noncorrosive since the 1930s. The U.S.
military did not decide to convert all small arms ammunition to noncorrosive
priming until 1949 and total conversion was not achieved until several years
later.
non-mercuric (Primer)- A priming mixture containing no mercury compounds.
Nylon- Generic name for all polymers having recurring amide groups in the molecular
backbone. Various types of nylon are described by numbers that relate to the
number of carbon atoms in the various reactants. Effect of heat: Sticks at
445F, Melts at 480F, Yellows slightly at 300F when held for 5 hours. The
most extensively used type of nylon in gloves is Nylon 6/6.
O.A.L. (OAL)- Over All Length
Out-the-front- A type of automatic knife with a blade that slides longitudinally in and out of
the handle, usually under spring pressure.
Paddle- A mounting platform for a holster that goes inside the waistband of a skirt or
pants. This allows the holster to be placed or removed quickly.
Para Cord Sleeve- The outer nylon sleeve of Para Cord. Spyderco uses the sleeve to cover the ball
chain attached to our neck sheaths thus reducing noise during carry as well as
possible pinching from the chain.
Parallax- The condition which exists when the reticle of a scope does not lie exactly on
the image plane. When this optical error exists, changes of eye position will
move the position of the reticle relative to the object sighted.
Parang- a Southeast Asian jungle knife. Although this term applies to a variety of
different styles of knifes it generally describes a leaf-shaped or angular
blade profile.
Pattern- The way a shotgun places its shot load. Generally measured as the percentage of
pellets that strike in a 30" circle at 40 yards. Has been jokingly used to
describe a very poor rifle group
Photon II- Quarter-sized flashlight that uses photon technology, an LED bulb emitting
incredibly bright full spectrum light with a Lithium long-life battery.
Picatinny Rail- A Weaver rail, modified by the governments Picatinny Arsenal, which is usually
found on a rifle and more recently on pistols. This metal rail, which has a
dovetail design with slots, allows accessories such as sights, laser aiming
devices and lights to mount to a weapon.
Pigskin- A durable leather. When tanned on the suede side, it produces luxurious
lightweight and tight suede. When tanned on the grain side, it produces a
durable Nappa. New tanning advances have yielded wonderful textures and gems of
color, adding to pigskinss appeal and versatility. Polyethylene (PE): A family
of resins prepared from the polymerization of ethylene gas using a variety of
catalysts. Cured during or after molding they become true thermosets with good
tensile strength, electrical properties and impact strength over a wide range
of temperatures. Glass fiber reinforced polyethylene can be processed by
injection molding, rotational molding, and blow moldings.
Pinky Shelf- An angled protrusion at the distal-end of the knife handle where the pinky
sits. This angled portion of the handle offers a leveraging spot for additional
control and coordination over the knife while in the hand.
PlainEdge- A sharpened knife blade with no serrations or teeth. Sometimes called a smooth
blade.
Plunge Lock- a high-strength locking mechanism for folding knives that consists of a
spring-loaded button or plunger that fits into a semi-circular cutout in the
blade tang to lock the blade in the open position. In automatic knives, the
plunge lock often acts as both the release button and the blade lock.
Point Of Aim- That point with which a firearm's sights are aligned to the bullet's path.
Point Of Impact:- That point which a bullet strikes; usually considered in relation to Point Of
Aim
Polypropylene (PP):- A thermoplastic resin used as a fiber reinforcement made by polymerizing
propylene. Its density (approximately 0.90) is among the lowest of all
plastics. Polypropylenes can be modified to gain improved properties by
compounding with fillers, e.g. glass fibers, by blending with synthetic
elastomers, and by copolymerizing with small amounts of other monomers. Glass
reinforced polypropylene can be processed by injection molding, continuous
lamination and rotational molding. Also known as POLYPROPENE.
Polyurethane (PU) Resins- A family of resins produced by reacting a diisocyanate with an organic compound
containing two or more active hydrogen atoms to form polymers having free
isocyanate groups. These groups, under the influence of heat or certain
catalysts, will in turn react with each other, or with a compound containing an
active hydrogen, such as water or a glycol, to form a thermosetting material.
Thermoplastic polyurethanes are also available as elastomeric or rigid
materials readily accepting a variety of reinforcements such as glass or carbon
fiber. The terms urethane and polyurethane are used interchangeably.
Pommel- The knob or expansion found on the of end a sword or knife.
Powder Charge- The amount of powder loaded into a case. (Also called a load)
Pressure- Force per unit area, measured in interior ballistics terms of pounds per square
inch
Pressure-Velocity Ratio- Numerical comparison of velocity to pressure in a specific cartridge with given
bullet and powder
Primer- The small cup containing an explosive compound which is detonated to ignite the
powder in centerfire metallic ammunition. Also, caps to ignite charges in
muzzle loading arms
Prylon- a proprietary blend of injection-molded nylon developed by Blade-Tech
Industries. Prylon is impervious to temperature extremes and is therefore an
ideal material for hard-use knife sheaths.
PSI- Pounds Per Square Inch. The amount of force, in pounds, per unit area, in
square inches, where the force F is understood to be acting perpendicular, at
right angles, to the surface area A: pressure = P = F/A
Quadralink- An interwoven layer system of Zylon containing thousands of micro pockets that
help distribute impact and increase stopping power
Quillion- A handguard protruding from both sides of the handle (where the handle and
blade meet), which stops the hand from slipping up onto the blade.
Range- The horizontal distance to an intended target.
Receiver- That portion of a firearm which holds the barrel and houses the bolt and firing
mechanism
Recoil- The rearward motion or "kick" or a gun on firing. Recoil in shooting is the
practical effect of Newton's Third Law of Motion: for every action there is an
opposite and equal reaction
Resiliency- The ability of a material to spring back to shape after being creased, twisted
or distorted. It is closely connected with wrinkle recovery. An example of good
resiliency is polyester. Sheepskin: Under the classifications of cabretta,
capeskin and suede is taken from the hardy animals native cold and high
altitude climates.
Reticle- The system of crosshairs, fine lines, or dots in the focus of a telescope, used
for aiming
Reverse "S" Blade- Blade shape resembling a backward S with the tip curving downward. The deep
belly (thickest part of the blade) curves in the same direction as the tip.
Rifling- The spiral grooves in the bore of a rifled firearm. The rotation they impart to
a projectile stabilizes it in flight.
Rimfire (RF)- A type of cartridge in which the priming compound is spun into the rim. Not
reloadable (i.e., .22 ling rifle)
S30V- A state-of-the-art high-carbon stainless steel developed specifically for the
cutlery industry. Technically known as CPM S30V, it is produced by particle
metallurgy to yield an exceptionally tough stainless steel for hard field use.
S30V is considerably more expensive that standard steels.
Save and Serve- Blanket term used to describe knife users who are EMTs, LEOs, Military
Personnel -- anyone who saves and serves.
Scale- A knife handle made of scales or slabs of material that are riveted, screwed or
bonded together.
Scimitar Blade- Scimitar - A scimitar blade curves with the sharpened area on the convex side.
Selective Fire- The ability to change a firearms mode of operation from semiautomatic to
automatic fire.
Semi-Automatic- A type of firearm which, by pulling the trigger, utilizes the energy of recoil,
or the powder gases, together with a heavy counter-balanced bolt and strong
bolt spring, to eject the fire case, load a fresh cartridge from magazine into
chamber, and close the breech ready to fire another round. The trigger must be
pulled for each shot
Sermollan- A rubberized plastic used on kitchen knife handles that offers a secure grip
and resistance to bacteria.
Sheepfoot Blade- A blade with a round, blunt tip that has no point. The design inhibits
accidental stabbing while working in emergency situations, around livestock and
inflatable boats.
Shell- A shotgun shell, consisting of the case, primer, powder charge, wad, and
projectiles (shot pellets or lead slug). Also commonly called a shotshell (if
loaded with shot pellets). Also used as a slang or informal term for any type
of live cartridge, e.g., a box of .30-30 shells
Shirt Shield- The cut down portion of the front of our carbon-fiber holsters. This allows you
to clear the weapon from the holster quicker and also allows you to re-holster
easier.
Side hilt- a guard that extends from the side of the handle of a knife. This unique
feature is characteristic of the designs of close-combat trainer Duane Dieter.
Sidewall- Narrow panel running down index finger and/or little finger side of glove for
fuller fit and rugged look.
Sight Aperture- Round opening in the rear sight.
Sight Radius- The distance between front and rear iron sights
Sight Track- A raised portion of the inner surface of a holster which allows the use of
high-profile front sights without snagging or dragging on the body of the
holster.
Silent Zipper Pulls- The BlackHawk Silent Zipper Pulls are designed and implemented on items that
have zipper closures and need additional grip or leverage to open and close.
The long cord with our Gripper tab provide an excellent positive grip when wet,
cold or just plain tired. The angling of the cord on the zipper slider allows
easier pulling to open and close the zipper on any item.
Single Column/Stack- When the cartridges in a magazine are held in a single row or stack. This makes
for a narrower magazine, requiring a thinner bodied mag pouch.
Slip Joint- Non Locking Blade -- a blade having a spring acting against it, which provides
some resistance to its opening and closing as it pivots within the handle.
Sniper Shoulder- An internal flexible rib on the outside edge of the pad provides a secure
anchor point for the buttstock of the rifle, preventing the drift that comes
with automatic weapons fire. In sniping engagements, it provides an anti-slip
surface for secure shot placement.
Spear Point- Blade shape that has an equal amount of curve on the spine and the cutting
edge. The two curves meet, coming together at the point. Designed for
general-purpose cutting.
Spectra- An ultra-high-molecular-weight polyethylene fiber made by Allied Signal. It is
the strongest manmade fiber available. Spectra is 8-10 times stronger than
steel, 40% stronger than aramid fiber (i.e. Kevlar) and stronger and lighter
than virtually every other commercial high-modulus fiber. Spectra offers
almost twice the cut resistance of Kevlar of the same weight. For more
information on Spectra, please visit Honeywell/Allied Signals website at
www.performancefibers.com/products/spectra
Speed Cut- The raised inner portion of our Leather Inside-the-Pants Holster, which
protects your shirt and body from the sharp edges of the side of the pistol
that is worn against the body.
Spire Point- A hunting bullet designed for longer range shooting
SpyderEdge- Spyderco's two-step serration pattern of one large and two small serrations.
This pattern increases the cutting edge by 24%.
Stainless Steel- Steel that contains a minimum of 12-1/2-13% chromium, making it resistant (not
stain-proof) to corrosion. The chromium oxide "CrO" creates a barrier to oxygen
and moisture, preventing rust formation.
Standard Model Holster- Carbon-fiber holster with the pressure adjustable detent for retention. It is
available in both carbon-fiber appliqu and matte finish models
Striker hilt- a protruding guard that can be used as a striking surface, a limited
penetration utility or defensive tool, and a prying tool. Designed by
close-combat trainer Duane Dieter.
Suede- The hair side of the leather that has been buffed by an abrading machine to
give a soft, burnished effect.
Swedge (non-sharpened)- Also called a false edge, it is a ground edge on the back of the blade's spine,
that is chamfered, or non-sharpened. It removes weight from the blade and can
change the blade's balance and penetration performance and appearance.
Tactical Holster- A holster that drops the pistol down below the normal position, by means of a
drop strap or straps and a platform that is worn on the thigh. Also called a
thigh holster or a drop or drop-leg holster.
Tang- The portion of the blade where it connects to the handle.
Tanto- A blade shape based on the traditional Japanese knife of this name. Its
distinguishing feature is an angled, faceted, armor-piercing point.
Tek-Lok- Detachable polymer clip mounted onto some of Spyderco's sheaths which can be
situated to carry the knife in five different carry positions: vertical,
inverted, cross-draw, small of back or horizontal position.
Tension Screw- The adjustable tensioning device on our holsters that allows the user to adjust
the amount of retention on the weapon. Whether it adjusts how hard the detent
grabs the trigger guard in the carbon-fiber holsters or how much drag it puts
on the pistol in our leather holsters, it gives the user a degree of control
over the amount of retention.
Thigh Holster- See Tactical Holster
Thumb Break- A retention method for a holster which uses a strap across the back of the
pistol. This strap typically runs from the outer side of the holster and
fastens to the side of the holster worn against the body. It attaches to the
body side with a snap mounted to a small raised thumb break on the body side
of the holster. This is released with the thumb, during the drawing of the
pistol, hence the name.
Time Of Flight (TOF)- The time it takes a projectile to cover a given distance
Tip-Up/Tip-Down- Refers to which direction the folded knife if positioned by its pocket clip.
When closed and clipped in a pocket, whichever direction (up or down) the
blade's tip sits defines if it is termed tip-up or tip-down.
Titanium- A non-ferrous metal used for its high tensile strength, light weight and
corrosion resistance. Can be colored through an electronic process.
Total Metal Jacket- TMJ's have thick, tough jackets and has the base closed to the lead
Trailing Belt Slot- A belt slot which trails out behind the body of the holster. This pulls the
grip of the weapon into the body, increasing the ability to conceal the weapon.
Trailing Point Blade- A trailing point blade is designed with a larger than average belly best used
for slicing. The blades point is generally higher than the spine of each blade
so that the point does not create a hindrance while in use.
Trainer- A red-handled non-sharpened knife used for training and practice purposes.
Trajectory- The flight path of a projectile
Trigger Guard- The part of a pistol that protects the trigger from accidental activation.
TRS- Tube routing system prevents kinks in hydration lines
Tungsten Carbide- A metal composed of powdered carbide of tungsten cemented (fused) together
under heat with cobalt. The hardest man made metal; used in some pistol case
resizing dies - and in all the bullet drawing and swaging dies for making
Hornady bullets
Velocity- The speed of a projectile expressed as distance per unit time
Volcano Grip- Our trademarked name for the waffle texture found in our FRN handled
lightweight knives. The continuous pattern of small squares offer better hand
grip while cutting.
Wad- A disc of paper, felt, cork, plastic or other material used primarily in
shotshells to separate powder from shot. Can be over-powder, filler or a
combination of these. Speer shot capsules for handguns feature a wad to seal
the bore.
Wharncliffe- A blade design in which the point of the knife is dropped to a straight cutting
edge.
Wickability- The ability of a fiber to transport moisture away from the skin.
Wind Deflection- The lateral deflection of a bullet caused by cross wind
Windage- Horizontal (lateral) sight adjustment
Wingwalk- an adhesive tape with an abrasive texture similar to sandpaper. Traditionally
used to provide secure footing for aircraft mechanics on the wings of military
aircraft, it has also been used for years by special operations personnel to
accessorize their weapons and gear. Applied to strategic points on a piece of
equipment, it ensures a secure grip under the most demanding field conditions.
Wood Epoxy Laminate- This is an impregnated wood laminate, which is extremely hard and machines
similar to Corian, aluminum and Micarta.
X-200 Light- a SureFire brand weapon mounted light, similar to the M-3 and M-6 defined
earlier. It also mounts to a Picatinny Rail.
Y-Harness- our unique patent-pending harness for our new tactical holsters and leg
platforms. It has swiveling attachment points to allow it to move with the
wearer and not bind up. This not only spreads the weight of the rig across more
of the waist, but allows the user to quickly disconnect the harness, if needed.
Zero- In shooting, the sight setting at which point of impact and point of aim
coincide at a given range
Z-Shield- An advanced Honeywell fiber shield containing Zylon
Zylon- Zylon is a synthetic fiber - the strongest man-made fiber in the world and
twice as strong as Kevlar, which is 5 times stronger than steel. Flame
resistance, it will burn only when exposed to atmospheric conditions consisting
of at least 68% oxygen, a state that is not naturally encountered in Earth's
atmosphere
