SUBMACHINE GUN Russian patent published in 2003 - IPC

FIELD: small arms-submachine guns. SUBSTANCE: the submachine gun has a barrel connected to the receiver with the aid of a pin, frame with a handle, breechblock, firing mechanism with a change lever, returning mechanism, sighting device, butt end, magazine lock located in the receiver. The frame and the breechblock are integrated in the form of a single part-breechblock on which inclined platforms are made engageable with the cartridge case at reflection. The breechblock handle has a chamfer for engagement with the change lever. The barrel pin is made with a projecting head with a cone and annular groove at it end, which fix the butt, a recess for installation of the magazine is made in the receiver. EFFECT: enhanced adaptability to manufacture, simplified in use and enhanced reliability in operation. 3 cl, 9 dwg