This is a Glock nodel 23 GEN4 semi-automatic pistol in .40 S&W caliber. It has a 4" barrel, adjustable night sights, FDE (flat dark earth) frame, light rail, and 13-round magazine capacity. This pistol is in good condition with a clean, bright bore. It comes in the original plastic hardcase with 3 magazines, bore brush, cleaning rod, and manual.