O-RING AND MAGAZINE FOR COMBATIVE CHARGES Russian patent published in 2014 - IPC F41A3/74 F41A3/76 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to the field of munitions. The group of inventions is claimed: O-ring for obturation of the magazine and the magazine for combative charges. The O-ring (100) for obturation of the magazine (4) for combative charges of automatic firearms for caseless ammunition, in particular with respect to the end surface (S) of the element of firearms, such as the breechblock (77) or the magazine (2) for bullets has a sealing surface adjacent to the end surface (S). The sealing surface comprises a first area (A₁) around the hole (D) of the O-ring (100) and a second area (A₂) around the first area (A₁). The second area (A₂) is lowered (α) relative to the tangential plane (T) to the first area (A₁). The magazine (4) for combative charges of automatic firearms with caseless ammunition comprises at least one of the O-rings (100). The magazine (4) comprises preferably one or several, in particular two chambers (5, 50) for combative charges, provided from the side of the breechblock and the magazine for bullets with the corresponding O-ring (100).

EFFECT: improved obturation of the magazine due to the O-ring, excluding the blowing of gases of combative charges.

11 cl, 7 dwg