SUBMACHINE GUN Russian patent published in 1997 - IPC

FIELD: small arms used to fire both in the air and under water, in which cartridges with a long bullet are used. SUBSTANCE: when breechblock carrier is fixed by the sear with the aid of the lug, the ejector with its lug slightly shifts the cartridge being fed, fixing the next cartridge under the lug. The value of overlapping of the magazine housing by the ejector should be less than the value of the carrier travel from the extreme rear position to the position when it gets fixed by the sear. To prevent compression of water at a strike of the firing pin by the end of the blind hole, the end has a punched hole. A longitudinal slot is made in the carrier to receive the cartridge ejector rigidly connected to receiver along the blind hole, which accommodates the breechblock tail-piece. Two lugs are made on the lower part of the breechblock carrier for engagement with the sear and rear lug of the ejector. After recoil the carrier with its lug displaces the ejector behind the lug and ejects the cut off cartridge to the feed line under the action of the magazine spring, after that the movable parts move forward at a pulled trigger and feed the cartridge cutting off the next cartridge, or at a released trigger the movable parts get fixed by the sear, the cartridge being fed is slightly shifted, and the next cartridge is cut off. EFFECT: enhanced reliability. 5 dwg