This video provides an in-depth look at the TRW Low Maintenance Rifle (XLMR), an experimental firearm developed by ARPA in 1969. The rifle features a unique roller-locked, open-bolt design and was initially chambered for the 5.6mm XM216 flechette cartridge, aiming for high muzzle velocity and extended point-blank range. The presenter, Ian McCollum, details its unconventional side-mounted magazine and gas tube, its M60-derived components, and its disassembly process, highlighting its rarity as only six were manufactured.
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