SILENCER FOR FIREARMS, HOUSING FOR THIS SILENCER AND EXPANSION CHAMBER BLOCK FOR THIS MUFFLER (OPTIONS) Russian patent published in 2023 - IPC F41A21/30 

FIELD: weaponry.

SUBSTANCE: silencers for weapons. The silencer contains a tubular body in which a flange plug is fixed, connected to a bushing for inserting the weapon barrel from the muzzle end of the latter and dividing the pipe cavity into two chambers communicating through channels in the bushing. In the second chamber, in the direction from the muzzle of the weapon, separators are fixed, arranged in series and forming a block of expansion chambers. The body on the bullet exit side is made with a screw thread for screwing in the end cap with a hole for the bullet and a central annular protrusion with an external screw thread for installing a muzzle brake. Behind the section with this screw thread, on the same wall of the housing, a screw thread is formed for screwing the block of expansion chambers all the way into the shell with holes in the cylindrical wall, which is pressed against the plug with holes in the flange. In the section of the screw thread of the housing for screwing in the block of expansion chambers, an additional screw thread is made with an angle of inclination of the turns and a width of the turns greater than the angle of inclination and width of the turns of the screw thread for the block of expansion chambers. The recesses of the additional screw thread on the bullet exit side are connected through holes in the end plug with the external environment, and on the bushing side - with the cavity formed between the inner wall of the body and the outer wall of the shell, located between the block of expansion chambers and the bushing.

EFFECT: improving the durability and reliability of the muffler.

5 cl, 9 dwg