| 摘要 |
The embodiments of the present invention generally provide or relate to an operating rod for use in an auto-loading firearm. More specifically, embodiments of the present invention provide an operating rod for selectively actuating a bolt carrier by gas-impingement or mechanical operation. The operating rod can comprise an operating rod gas duct coupled to an operating rod gas tube, wherein gases from a fired cartridge are directed into the gas duct and flow through the gas tube to actuate a bolt carrier by gas-impingement. Alternatively, gases from a fired cartridge can be directed against a forward-end of the operating rod, thereby causing the operating rod to mechanically operate the bolt carrier. |
