초록 ▼

A bolt assembly for a firearm is constructed with three locking lugs, one of which is oriented down in unlocked condition as it is withdrawn past the magazine of the firearm. The body of the bolt is of reduced diameter with respect to the bolt head which carries the locking lugs. A cartridge depress

A bolt assembly for a firearm is constructed with three locking lugs, one of which is oriented down in unlocked condition as it is withdrawn past the magazine of the firearm. The body of the bolt is of reduced diameter with respect to the bolt head which carries the locking lugs. A cartridge depressor is mounted in association with the bolt body to effectively increase the diameter of the bolt body in the vicinity of the magazine to that of the bolt head.

대표청구항 ▼

A cartridge depressor and gas stop subassembly for a bolt assembly of a firearm which has a plurality of locking lug grooves at the chamber end of a receiver and a magazine in open communication with said receiver adjacent one of said locking lug grooves, comprising: a gas stop ring with an internal

A cartridge depressor and gas stop subassembly for a bolt assembly of a firearm which has a plurality of locking lug grooves at the chamber end of a receiver and a magazine in open communication with said receiver adjacent one of said locking lug grooves, comprising: a gas stop ring with an internal bore adapted to receive the bolt body of said bolt assembly; and a plurality of gas stop projections arranged and configurated to enter and seal said locking lug grooves, the projection adapted to said groove adjacent said magazine being elongated in the direction parallel the axis of said bolt body to present a surface adjacent the magazine constituting means for retaining cartridges in said magazine in noninterfering relation with said locking lug groove.