The Definition of Cock
The term referring to the action of manually drawing the hammer back against its spring until it becomes latched against the sear,
or sometimes the trigger itself, arming the hammer to be released by a subsequent pull of the trigger. Some external hammers, and all internal hammers,
may be cocked simply by pulling the trigger
19 Other Firearms Definitions You Need To Know
Slang word for short barreled revolver.
The wearing of the portion of the barrel where the gas pressure and heat is highest as the projectile leaves the chamber.
The greater the chamber pressure the more rapid throat erosion occurs which is compounded by rapid firing which heats and weakens the steel.
A machine gun that is designed to be carried and opperated by a single person.
A higher quality item used to increase accuracy, generally used for competition in a match. Match grade ammo and barrels are the most common improvements made to a firearm to improve accuracy for competition.
A fully automatic firearm that fires pistol ammunition.
A mechanical device that protrudes from the gun when a round is in position ready to be fired, giving a visual and tactile indication that the gun is loaded.
Also known as collimating sight or occluded eye gunsight, a Collimator Sight is
a type of optical "blind" sight that allows the user looking into it to see an illuminated aiming point aligned
with the device the sight is attached to regardless of eye position (parallax free).
The user can not see through the sight so it is used with both eyes open while one looks into the sight,
with one eye open and moving the head to alternately see the sight and then at the target, or using one
eye to partially see the sight and target at the same time.
Bull barrels are barrels that are not tapered at all. These very heavy barrels, designed for extreme accuracy, are usually seen on target rifles.
The paper filler at the rear of the powder charge of the shotgun shell.
The abbreviation for Automatic Colt Pistol.
It is commonly used to designate specific calibers, particularly those which were originally designed by John Moses Browning for the
Colt Firearms Company which are a type of rimless pistol cartridge designed mainly for use in semi-automatic pistols.
The most common ACP calibers are .25 ACP, .32 ACP, .380 ACP and .45 ACP.
A rifle front sight with a extra-large, folding bead. Typically, in addition to the normal fine bead (which allows for more precision) the larger bead,
while at a cost of potential accuracy, is more readily acquired in marginal light. Also called a Gloaming sight
An attachment to or integral part of the barrel that redirects some of the pressurized gas that propelled the bullet out
the muzzle to the sides and possibly rearwards from the direction of the bullet travel. This reduces the recoil of the firearm.
A person living in the State of Oregon that is a firm supporter of the Second Amendment (plus the other nine Bill of Rights amendments) and generally will also be a firearms enthusiast.
In other words "A Gun Loving Red Blooded American that Hails from The State of Oregon"
The setting on the sights of a firearm that controls the vertical placement and the altitude above mean sea level.
This is important for long range precision shooting because the air density changes with elevation and affects the path of the bullet.
The proper adjustment of the various interrelated moving parts of a gun so that every operation works in proper sequence, such as that the two ejectors
of a double gun kick out the spent cases at the same instant and with the same force.
A passive, external safety typically located on the backstrap, which must be fully depressed to release the trigger. Most 1911-pattern pistols feature a grip safety.
Short, interchangeable cylinders, of
subtly different internal tapers, that screw into a threaded recess at the muzzle of a
shotgun. By inserting different choke tubes, one can alter the shot pattern thrown by the
The small lever on a cartridge firearm, which one pulls to cause the spring-loaded firing pin to impact the primer, causing the gun to discharge.
Normally, the trigger simply connects to the sear. Pulling the trigger moves the sear out of its notch, releasing the spring-loaded hammer
to strike the firing pin which in turn strikes the primer; or the coilspring-loaded firing pin directly. Other, often-Germanic systems have their own
miniature lockwork which, when cocked, allows an exceedingly light trigger pull to discharge the firearm, a setting that would be perilous to carry in the field.