CMMG 8″ 5.7x28mm Barrel and BCG Kit – Drop In Black

Description

Upgrade your AR pistol or SBR with the CMMG 8″ Barrel and BCG Kit, designed for the 5.7x28mm caliber. This kit features CMMG’s innovative Radial Delayed Blowback operating system, which not only reduces the weight of the bolt carrier group but also minimizes felt recoil compared to traditional blowback systems. The kit includes a drop-in barrel that works seamlessly with CMMG Mk57 lower receivers and standard Mk4/AR15 mil-spec lowers when paired with CMMG 5.7 AR Conversion Magazines. Experience the benefits of enhanced performance and reliability with this essential component for your firearm build.