Cobalt Kinetics CKPROURG556137Black Ck-Pro Urg 5.56X45mm Nato 13.70" Black Cerakote Receiver The Cobalt Kinetics Ck-Pro Upper Receiver Groups Were Designed For End users That Want To Upgrade Their Current ARs To Have The Same Performance Edge Featured In Completed platforms. All Ck-Pro URGs Are expertly Built By Gunsmith Staff. Built URGs Are Test-Fired For Function Before Leaving Out The Door To The Customer. Caliber: 5.56X45mm Nato Barrel Length: 13.70" Receiver Finish: Black Cerakote
