Colt 2022 current production AR-15A4 20″ rifle upper. Barrel is 20″ chrome lined 1/7 twist with M4 feedramps. Colt’s CAGE code 13629 is marked above the forward assist. MPC marked bolt with C marked carrier. Barrel is marked C MP 5.56 NATO 1/7. Includes Colt carry handle with square forge code. New in sealed blue Colt VCI poly bag.