This is a Glock model 45 semi-automatic pistol in 9mm Luger caliber. It has a 4" barrel, light rail, Ameriglo night sights, ambi-slide release, interchangeable backstrap inserts, and 17-round magazine capacity. This pistol is in nice condition with a clean, bright bore. It comes in the original black plastic Glock hardcase with manual, cable lock, grip inserts, cleaning rod, bore brush, and 3 magazines.