The Fight Lite MCR (Mission Configurable Rifle) offers a unique belt-fed upper receiver assembly that can convert standard AR-15/M16 lower receivers into a belt-fed system. This allows for the use of both belted ammunition and traditional magazines, providing significant versatility. The system is a continuation of the lineage from Aries Defense Systems' Shrike product line, catering to the domestic and commercial markets.
Ian McCollum of Forgotten Weapons details the RP-46, a belt-fed adaptation of the Soviet DPM machine gun. The video explains the unique drop-in belt-feed adapter, its operation via the bolt handle, and the internal mechanisms for cartridge extraction and chambering. Despite its innovative design, the RP-46 is noted as a rare firearm.
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