SMALL ARMS Russian patent published in 2008 - IPC F41A21/48 

FIELD: dismountable weapon with a detachable barrel.

SUBSTANCE: the small arms has a receiver with an opening for installation of the barrel, barrel with an inlet part device protecting the barrel from turning. The novelty is in the fact that the small arms is provided with an end-piece having a female thread and an apening for installation of the barrel, the barrel inlet part is made thickened with the shape of a cylinder with the back part conjugated with the internal cone made in the end-piece hole, a male thread is made on the front part of the receiver for joining with the female thread of the end-piece.

EFFECT: provided stability of weapon fire characteristics after disassembly and reassembly, and simplified construction that doesn't need any adjustment and lapping of the joined parts, can be used in weapons with locking of any type.

5 cl, 4 dwg