Stock Status: CMMG 45 ACP MkG Bolt Carrier Group (BCG)
Whether you're building a new Radial Delayed Blowback AR or you just like having spare BCGs on hand, the .45 ACP MkG bolt carrier group is just the thing.
Compatibility: CMMG Radial Delayed Blowback BCGs are desgined exclusively to operate with CMMG Radial Delayed Blowback barrels and will not operate with traditional AR style barrel extensions.
