This is a Shadow Systems model MR920 semi-automatic pistol in 9mm Luger caliber. It has a 4.4" threaded copper colored barrel, optic-ready slide, fixed rear sight, front night sight, interchangeable backstraps, and 15-round magazine capacity. This pistol is LIKE NEW in the original box with softcase, 2 magazines, 3 backstrap inserts, manual, and cable lock.