28 terms and definitions
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Bureau of Alcohol, Tobacco, Firearms and Explosives; a federal law enforcement organization within the U.S. Department o...
The internal diameter of a gun barrel or the diameter of the projectile it fires, usually expressed in inches or millime...
Concealed Carry Weapon, referring to a permit or the act of carrying a firearm in a concealed manner.
Federal Firearm License; a license issued by the ATF to individuals or companies involved in the firearms business.
A device used to hold or restrict the movement of a handgun, typically worn on the body or attached to a tactical vest.
National Instant Criminal Background Check System; used by FFLs to determine if a prospective buyer is legally eligible ...
National Rifle Association; a gun rights advocacy group and firearm instruction organization in the United States.
National Firearms Act; a federal law in the United States that imposes taxes and regulates certain firearms and devices.
A sighting device, such as a scope or red dot sight, used to aid in aiming a firearm.
The backward momentum or kick generated by a firearm when discharged, due to Newton's third law of motion.
A type of metallic cartridge ignition where the firing pin strikes the rim of the cartridge case to ignite the primer.
A type of metallic cartridge ignition where the primer is located in the center of the cartridge base.
A device attached to the muzzle of a firearm that reduces the sound of a gunshot; also known as a silencer.
The legal process of conveying ownership of a firearm from one party to another, typically through an FFL dealer.
The end of the barrel of a firearm from which the projectile exits.
The operating mechanism of a firearm that loads, fires, and ejects cartridges.
The science of projectiles and firearms, specifically the study of the motion of a projectile.
The part of a firearm's barrel or cylinder that holds the cartridge or shotshell for firing.
A unit of measurement used to describe the diameter of the bore of a shotgun, determined by the number of lead balls of ...
A device for holding cartridges in a repeating firearm for feeding into the chamber.
The speed of a projectile as it exits the barrel of a firearm.
A small, explosive component in a cartridge or shotshell that ignites the propellant when struck by the firing pin.
The helical grooves cut into the inside surface of a firearm's barrel, which impart spin to the projectile for stability...
A device used to aid in aiming a firearm, typically consisting of a front and rear component.
The path a projectile takes from the moment it leaves the barrel until it reaches its target.