12-gauge
`Masterkey' breaching module
Report by Xian Saint
Knight's Armament Company
(KAC) is producing a modified 12-gauge shotgun
module as a component of KAC's Modular Weapon
Concept. A unique aluminum adapter that simulates
the receiver dimensions of the M203 grenade
launcher is a key component manufactured by
Knight's. This becomes the upper part of the
shotgun's receiver and allows the use of KAC's
Quick-Detach (QD) front mounting bracket. This
combination allows user level attachment of
the `Masterkey' module to M16 carbines and rifles
in the same manner as 40 mm grenade launcher
modules modified with the QD bracket. Like the
grenade launcher, the `Masterkey' module is
designed so that the M16's magazine serves as
a handgrip when operating the shotgun's trigger.
By simulating the profile of the grenade launcher's
receiver, the shotgun's recoil loads are safely
distributed through the host weapon's barrel
nut and barrel. A shoulder stock assembly that
Knight Armaments label as the `Stand Alone'
is a complementary module to the shotgun. The
`Stand Alone' allows employment of the shotgun
as an independent weapon and also interfaces
in the same manner for the QD 40-mm M203 grenade
launcher.
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