LIGHT WEIGHT WEAPON OPERATING SYSTEM AND CARTRIDGE FEED

摘要

A firearm (1) for operating large cartridges (70). The firearm maybe a shoulder-fired, semi-automatic grenade launcher for firing grenade cartridges (70). The grenade launcher includes a magazine (90) with a receptacle that holds one or more cartridges. The receiver (80) includes lightweight weapon operating system (540). A tubular magazine (90) has a lift (360) based cartridge feed system, and a vernier feed system (210) for disengaging the stacked cartridges.