Description
MK57 Upper Features CMMG’s RESOLUTE lineup is engineered with purpose for those who refuse to compromise on quality. This RESOLUTE upper comes with a 16-inch barrel and is designed for balance, accuracy and maneuverability. MK57 Upper Specifications Model:Mk57 Type:Complete Upper Caliber:5.7X28MM Barrel Length:16.1″ Color:Black Fit:AR Rifles 16″ Barrel
