SILENCED SMALL ARMS Russian patent published in 2007 - IPC F41A21/30 

FIELD: detachable muzzle attachments reducing the shot sound.

SUBSTANCE: the silenced small arms has a fore-sight block that is installed at the end of the barrel and has a portion projecting before the barrel, the rear cylindrical section of this portion has a spiral for fastening of the silencer body, and the front section has a tapered seat for the separator, whose rear end has a mating seat, besides, the separator is positioned in the body for longitudinal travel during attachment of the assembled silencer, and a shoulder is provided on the front section of the separator for pressing it to the fore-sight block with the aid of a cover screwed on the silencer body. The separator has a boss in the front upper section preventing the turning of the separator inside the silencer body, but allowing the separator to move in the longitudinal direction inside the silencer body, whose wall has a mating longitudinal groove. The front part of the cylindrical body of the silencer is provided with teeth intended for engagement with the plate spring of the silencer cover, the shape of teeth inclination is such that the spring being engage able with the inclined surface of the teeth may pass when the silencer cover is being screwed on, at the same time locking the silencer cover against spontaneous unscrewing at a reversed rotation.

EFFECT: provided characteristics of close grouping of shots and accuracy of fire of silenced arms with a detachable silencer without reducing the close grouping and accuracy of the arms for a similar cartridge equipped with an integrated silencer.

3 cl, 2 dwg