Bolt carrier and bolt for gas operated firearms

摘要: An improved bolt and carrier with integral gas key having an extension nozzle threadedly secured pinned to the for use a direct operated firearm is provided. The designed receive portion of host firearms operating system. firing pin retaining oriented so as expose its widest profile pins annular flange, increasing service life. has plurality lugs extending from forward end extractor recess. recess constructed accommodate enlarged claw while not undercutting adjacent thereto. engages approximately 57% more seated ammunition cartridges rim compared some prior art AR15/M16 type extractors used automatic chambered in 6.8SPC. result which provides increased operational reliability.