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.
This entry details the AAI 2nd Gen SPIW flechette rifle, a prototype from the 1960s explored by the US military. It highlights the weapon's unique XM-145 flechette ammunition, its complex operational history including trial failures and improvements, and its eventual legacy influencing the ACR program. The analysis is presented with high authority by Ian McCollum of Forgotten Weapons.
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