Sale CMMG BBL AND BCG KIT 16.1" 5.7X28MM The 16.1" 5.7x28mm Barrel and BCG Kit is perfect for building an AR pistol or SBR in 5.7x28mm using CMMG's patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems,... MSRP: $548.31 Was: Now: $400.14 Add to Cart
