This is a Glock model 21 GEN 4 semi-automatic pistol in .45 ACP caliber. It has a 4.6" barrel, fixed sights, light rail, interchangeble backstrap inserts, and 13-round magazine capacity. This pistol is in good condition with some minor scratches and light finish wear. The bore is clean, and bright. This pistol is equipped with a Lasermax green laser guide rod sight. It comes in the original plastic hardcase with manual, cable lock, bore brush, cleaning rod, 4 backstrap inserts, and 3 magazines.