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United
States -Canada Gun Glossary
Education
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Brought to you By Dundee
Sportsman's Club Inc. |
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Click the first letter of the word you want to find to view glossary page. |
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A B
C D
E F G
H I
J K L
M N
O P Q
R S
T U V
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Magazine |
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A container for cartridges or shotshells with a spring and follower to feed cartridges into the
chamber
of the firearm. It may be detachable or an integral part of the
firearm. |
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Magazine Floorplate
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The bottom of a fixed magazine. |
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Magazine
Follower |
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A spring-actuated device to push cartridges in a
magazine to the feeding position. |
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Magazine Plug |
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A part inserted into a magazine to reduce its capacity. It is also the part in the end of a
tubular magazine that closes the end and retains the spring. |
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Magazine Release |
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A device that retains or releases a detachable magazine in a firearm. |
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Magazine
Safety |
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A safety device found on some
semi-automatic handguns that prevents firing unless the magazine is inserted into the firearm. |
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Magazine Throat |
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A metallic insert found in some plastic magazines that aligns the next cartridge to be fed into the chamber. |
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Magazine Well |
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The opening in a firearm that receives the detachable magazine. |
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Magnum
Cartridge |
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Centerfire, rimfire and shotshell ammunition that is larger, more powerful or produces higher velocities than standard calibers. |
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Mainspring |
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A strong spring, a.k.a an energy storage device, that operates the striker or hammer of a firearm. |
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Mainspring Guide |
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Usually a rod-like device that keeps the mainspring from kinking. |
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Mainspring
Housing |
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A channel in which the mainspring rides. |
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Martini Action |
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A hammerless single shot rifle action operated by a lever where the
breechblock's movement is contained within the receiver and pivots at the rear. |
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Match |
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A long cord of hemp, flax or cotton saturated with saltpeter that burns slowly without a flame. Used to ignite the early
matchlock firearms. |
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Matchlock |
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A firearm action of the type used by the first European
explorers and Conquistadors that relies on an S-shaped (serpentine) piece of
metal to hold the smoldering match. Once activated the burning end of the match,
held by the upper end of the serpentine, drops to the priming powder in the pan
and ignites the powder charge in the barrel though the touch hole. |
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Metallic
Sights |
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A non-telescopic firearm sight. Also called iron sights. |
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Mini Ball |
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A conical shaped lead bullet with a hollow base that spreads
once fired to form a tight fit between the lead of the bullet skirt and the
rifle's grooves. The most popular military bullet configuration throughout the
Civil War. |
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Modified
Choke |
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Musket |
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A smoothbore military shoulder
gun with a long
barrel
and forend stock extending nearly to the muzzle.
Muskets were in common use during the 17th, 18th,
and 19th centuries. |
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Musketoon |
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A musket shortened for cavalry use. |
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Muzzle |
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The "business end" of the firearm's barrel from which the
bullet or shot emerges. |
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Muzzle
Blast |
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The loud noise that occurs at the muzzle of a firearm when
the projectile leaves the muzzle and hot gases are released into the air. |
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Muzzle Brake |
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A device at or in the muzzle end of the
barrel (often slotted) that vents
off the emerging gases behind the projectile to reduce recoil. |
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Muzzle
Crown |
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A treatment of the mouth of the
muzzle that creates an even, circular opening by
shaving away metal that may be worn into a more oval
pattern. Accuracy is often improved by crowning the
muzzle. |
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Muzzle
Energy |
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A bullet's energy, measured in
foot pounds, as it emerges from the muzzle. |
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Muzzle
Flash |
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The bright flash or illumination
at the muzzle of the firearm that results from
propellant particles emerging from the
barrel
behind the projectile and igniting when mixed with
oxygen in the air. |
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Muzzle
Loader |
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Any firearm that is loaded with
gunpowder and projectile(s) through the muzzle end
of the
barrel. |
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Muzzle
Velocity |
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The velocity of a projectile as
it exits the muzzle of a firearm. |
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