Barrel and BCG Kit, 16″ 4140CM, SBN, 45ACP

Our 45ACP 16″ MkG Barrel and BCG Kit allows you to build a Pistol Caliber Carbine using our Patent Pending Radial Delayed Blowback System. Unlike typical direct blowback systems, our RDB uses a bolt that is forced to rotate and unlock, slowing the BCG. This results in a lighter BCG for a lighter rifle, and less felt recoil than a straight blowback system.

Our MkG Barrel and Bolt Kits are designed to work with mi-spec uppers and exclusively with our MkG Lowers. Other manufacturers’ receivers may work, but we cannot guarantee function or reliability. For more information regarding fitment, check with our Tech Support team.

All CMMG products come with our Lifetime Quality Guarantee.