

The Masterkey inspired the M26 Modular Accessory Shotgun System, an attachable shotgun in use with the United States Army. KAC makes an independent stock for the Masterkey that also can be used with the M203 grenade launcher. Independent stocks and grips for the 870 are available for use, but they are incompatible with the M16 barrel mount. The shotgun cannot be operated independently because it has no grip behind the trigger - when firing the Masterkey, the M16's magazine must be used as a makeshift pistol grip. It has a 3-round internal magazine and can carry a fourth round in the chamber. The system consists of a Remington 870 12 gauge pump-action shotgun mounted on a M16 or M4 assault rifle in an underbarrel configuration, much like the M203 grenade launcher. Individual soldiers were often forced to carry a breaching shotgun in addition to their standard issue rifle, but the Masterkey removes this need. The Masterkey project was initiated during the 1980s to provide assault rifles with a potent built-in door breaching tool. The Masterkey is a door breaching shotgun system manufactured by Knight's Armament Company. The Shotgun, in some cases Masterkey, is a weapon attachment featured in Call of Duty: Modern Warfare 2, Call of Duty: Black Ops, Call of Duty: Modern Warfare 3, Call of Duty Online, Call of Duty: Ghosts, Call of Duty: Modern Warfare, Call of Duty: Modern Warfare 2 Campaign Remastered, and Call of Duty: Modern Warfare II.

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Please improve this article by adding a reference.įor information about how to add references, see Template:Citation. For the Gun Perk in Infinite Warfare, see Master Key (gun perk). This article does not contain any citations or references.
