LOW-NOISE FIRING DEVICE Russian patent published in 2025 - IPC F41A21/30 

FIELD: weapons.

SUBSTANCE: low-noise firing device comprises an external housing with a front cover with a central hole for the bullet outlet and a rear cover with a central threaded hole for fixing the device, a preliminary chamber from the inside adjacent to the rear cover, inner housing in the form of a hollow cylinder adjacent to the front cover, with separator partitions in-series installed in the cylinder, the inner part of which forms a row of expansion chambers and is made in the form of a hyperboloid of revolution with a hole for bullet passage, oriented towards the gun barrel. In front cover along circumference there are through holes for removal of powder gases. Through radial holes are made in the inner housing extending from the front to the rear cover and rigidly attached to them. Thickened front cover is equipped on the outside with a slotted flame arrester in the form of a truncated cone, having a central hole for the passage of a bullet and five through longitudinal cuts made in its wall from the smaller base of the cone towards the larger one with displacement of the ends of the cuts relative to the generatrix of the cone counterclockwise.

EFFECT: enabling reduction of tell-tale factors during firing.

2 cl, 2 dwg