CMMG 57CA2CB-CG Lower Receiver Assembly, Mk57, Charcoal

Lower Receiver Assembly, Mk57, Midnight Bronze

Lower Receiver Assembly, Mk57, Sniper Grey

Lower Receiver Assembly, Mk57, Armor Black

Designed to accept and function properly with 10mm Glock and SGM magazines, the Mk10 lower receiver assembly is built to the same fit and finish expected of any CMMG product. Featuring an integrated...

Inspired by the success of the original MkG, the MkGs lower receiver is designed to accept either 9mm or .40 S&W Glock and SGM magazines. Features include an integrated trigger guard, last round...