The Definition of M1911
The official US military designation for the Colt .45 semiautomatic pistol adopted by the US in 1911.
The gun was designed by John Moses Browning, and produced by Colt.
During trials, the Browning-Colt design beat out several competing designs, including one from Savage and a .45 caliber version of the German Parabellum ("Luger").
The M1911 saw its first combat in the Philippines and then in World War I.
Early use showed that it could be improved and in 1921 the M1911A1 was introduced, which featured a few changes like a reocontoured frame,
shorter trigger, and a rounded backstrap. The M1911A1 remained the standard US military handgun until it was replaced in the 1980's by the Beretta M9.
However, it remains very popular with civilian shooters in the US, and has been modified extensively to update it to
conform to more modern theories of handgun usage.
19 Other Firearms Definitions You Need To Know
Abbreviation for Close Quarters Combat.
A shotgun shooting sport in which the competitors attempt to break aerial targets directed toward them or crossing in front of them from different angles and elevations. It is an Olympic shooting sport.
A process of filling gaps between the action and the stock of a rifle with an epoxy based material.
Abbreviation for 'Back Up Gun'
A firearm loaded through the breech.
Openings at the muzzle end of the gun through which some of the spent gases can escape.
Porting reduces perceived recoil and lessens muzzle rise but increases the noise and flash.
A small lever mounted to the cocking piece of a Winchester Model 70 rifle, rotating on a vertical axis from front (Fire),
halfway back (Safe, but allowing bolt movement), and fully back (Bolt and firing pin locked Safe).
While, like the Mauser, commendable for locking the firing pin instead of just the trigger,
its fore and aft movement is both easier to operate and it allows lower mounting of telescopic sights,
reducing parallax between the line of sight and the line of the bore and increasing the range of
distances for which the scope may be reliably sighted-in.
Also known as Gun Powder.
A mixture of sulfur, charcoal, and potassium nitrate. It burns rapidly, producing a volume of hot gas made up of carbon dioxide, water, and nitrogen, and a solid residue of potassium sulfide.
Because of its burning properties and the amount of heat and gas volume that it generates, gunpowder has been widely used as a propellant in firearms and as a
pyrotechnic composition in fireworks.
Modern firearms do not use the traditional black powder described here, but instead use smokeless powder.
A device typically made from stamped metal which holds a group of cartridges for easy and virtually simultaneous loading into the fixed magazine of a firearm.
A tip for a cleaning rod, a jag, with spirally-radial wires for vigorously scrubbing a gun's bore.
This is the area in the barrel that is directly forward of the chamber, which tapers to the bore diameter.
A broad, flat, raised area on the side of a buttstock.
A metal cup placed on the end of a lead bullet to protect the lead against the hot gases of the burning powder charge.
Used in some types of firearms ammunition when non-jacketed bullets are used in high pressure cartridges, to prevent the buildup of lead in the barrel and aid in accuracy.
For self-defensive shooters, Center Of Mass (COM) represents the area of an attackers torso within which the most vital organs are likely to be disrupted by a gunshot.
Shooting to COM is considered the most expedient way to stop an assailant from continuing threatening behavior.
A constriction at or near the muzzle of a shotgun barrel that affects shot dispersion.
The arc described by a projectile (or a load of shot) after it exits the muzzle of a firearm. Falling objects accelerate downwards at a rate of 32 feet per second, per second.
The faster a projectile travels, the greater the distance it can cover in a given time before dropping too far. Hence, the higher the velocity of a bullet, the flatter the trajectory it will achieve.
A type of lock in which the hammer pivots in a vertical arc, striking the nipple on the underside of the barrel.
Since the nipple's flash channel goes straight into the powder at the breech end of the barrel, ignition time is very fast.
For this reason, and because it gets the hammer out of the way, underhammer locks are commonly used on muzzleloading
benchrest rifles which are used for target shooting, and where accuracy is the goal.
A charge of powder, a projectile or a cartridge. Also, to prepare a gun for firing by inserting ammunition into it.
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