The kit requires no permanent modifications to the standard rifle, and uses the factory bolt. Gas block is for use with 0.750" diameter barrels.
CMMG Gas Piston Retrofit Conversion Kit with Gas Block and 1-Piece Bolt Carrier AR-15 Carbine Length
- Product #: 350058
- CMMG #: 55BA62E
- UPC #: 852005002349