This is a Shadow Systems model DR920 semi-automatic pistol in 9mm Luger caliber. It has a 4.4" barrel, front night sight, fixed rear sight, optic-ready slide, interchangeable a\backstraps, and 17-round magaine capacity. This pistol is LIKE NEW in the original box with softcase, 2 magazines, 3 backstraps, magwell, manual, and cable lock.