Easily convert your standard AR-15 upper into a high-performance rimfire build with the 9" .22LR Barrel and BCG Conversion Kit. Designed for exceptional reliability and smooth cycling, this drop-in...
CMMG .22LR BARREL COLLAR ASSEMBLY
Used to covert a CMMG Conversion Bolt Carrier Group to be used with a a dedicated .22LR Upper
Collar designed to work with CMMG and RTB .22LR Barrels