This is a HK USP Expert semi-automatic double action pistol in .45 ACP caliber. It has a 5" barrel, adjustable sights, light rail, ambi-safety/decoker, ambi-mag release, and 12-round magazine capacity. This pistol is in nice condition with a clean, bright bore. It comes in the original box with manual, cable lock, spare o-rings, key for the built in lock, and two magazines.