HK USP is a semi-auto pistol developed in Germany by Heckler & Koch as a replacement for the H&K P7 Series. This new family of pistol was focused on the US civilian and law enforcement market. In 1991, USP prototypes participated in the Offensive Handgun Weapon System (OHWS) program requested by USSOCOM and result in HK MK23 Mod 0. Then the USP prototypes were refined in 1992 based on the OHWS trials and finalized the design. USP was formally introduced in 1993 with the USP40 (.40 S&W) and USP9 (9 x 19mm) and later the USP45 (.45 ACP) in 1995.

The first USP Compact appeared in 1996. USP Compact is a scaled-down USP, it has smaller size of the frame, shorter slide and the magazine for Compact has a handgrip extension. It also has a bobbed hammer to reduce possible snag from the hammer on a holster or clothing while the pistol is being drawn. The USP Compact is available in all the same cartridges as the full size version and additionally the .357 SIG, USP357 Compact.

Features:
‧134A / Green Gas powered
‧Semi-Auto gas blowback pistol
‧Comes with Polymer slide with "HK USP COMPACT", "9mm x 19" and serial number marking
‧Comes with Polymer outer barrel with "HK", "9mm x 19" and serial number marking
‧Comes with Metal white dot Patridge front and rear sight
‧Comes with Polymer frame with slot for attaching 20mm Picatinny accessory rail
‧Comes with Polymer non-slip grip with lanyard hole and "USP" marking
‧Comes with Metal trigger, magazine release lever, slide catch, hammer and safety / hammer release
‧Package includes Metal 23 rounds gas magazine with "9 x 19 C" marking and Polymer base plate
‧Package includes Polymer detachable 20mm Picatinny accessory rail
‧Package includes changeable flat magazine base plate

Specifications:
Length: 175mm
Barrel Length: 90mm
Weight: 698g (with magazine)
Color: Black
Material: Polymer, Metal
Hop-up: Adjustable
Shooting Mode: Safety, Semi-Auto
Magazine Capacity: 23 Rounds
Bullet Type: 6mm BB
Gas: 8KG (134A), 12KG (Green Gas)
Power(Muzzle Velocity): 280 FPS (0.2g BB, Green Gas)
Manufacturer: Tokyo Marui