SUBMACHINE GUN SELF-LOADING RIFLE Russian patent published in 2020 - IPC F41C7/00 F41A3/14 

FIELD: weapons and ammunition.

SUBSTANCE: rifle self-loading submachine gun contains a rifled barrel, a rotary bolt, a return spiral cylindrical spring, a trigger mechanism and magazine for cartridges. Said rifled barrel is made integral with elongated breech piece to accommodate rotary cylindrical gate with hammer and ejector. To lock and unlock the barrel bore inside its breech end, the half-length of the breech end of the billet is provided with six lead-in parallel shaped inclined grooves, five of which are permanently engaged with the five thrust chamfered projections of the rotary breech block. Sixth shaped inclined groove at the bottom of the breech part of the barrel is permanently engaged with the thrust chamfered lateral ledge of the striker intended for placing the striker on the firing post by the retainer spring-loaded by the resilient steel plate. Recharging handle of the submachine gun is screwed into the front part of the bolt from the outside through the window for ejecting spent cartridges placed on the right side in the elongated breech part of the barrel. Gear of submachine gun is fixed from below to breech part of barrel.

EFFECT: increase of bullet initial speed and its punching capacity, reduction of recoil of submachine gun, simplification of design.

1 cl, 5 dwg