CMMG 5.7x28mm Barrel and BCG Kit – 5″ Drop-in Black

Description

The CMMG 5.7x28mm Barrel and BCG Kit features a 5″ drop-in barrel designed for AR builds using CMMG’s innovative Radial Delayed Blowback system. This system not only reduces the weight of your BCG but also minimizes felt recoil compared to traditional blowback systems. Compatible with mil-spec AR15 upper receivers, this kit works seamlessly with either the CMMG Mk57 lower receiver or a standard Mk4/AR-15 lower receiver when using CMMG 5.7 AR Conversion Magazines. Elevate your shooting experience with this high-performance barrel and bolt carrier group kit.