|Cartridge||9 x 19 mm Para|
|Dimensions and weight|
|Total weight (with loaded magazine)||805 g|
|Total weight (with empty magazine)||720 g|
|Overall length||194 mm|
|Barrels length||108 mm|
|Bullets initial speed||350 m/s|
|Practical rate of fire||30 rpm|
|Magazine capacity||15 rounds|
|Sighting range||80 m|
|Range of effective fire||100 m|
"Heckler & Koch" USP (Universal Seldstlade Pistol) self-loading pistol was first time publicly presented in year 1993. It was developed as multipurpose pistol for police, armed and special forces. First modifications were chambered for 9-mm Para (USP 9), and 10-mm .40 Auto (USP 40) cartridges.
Pistols automatic works on barrels short recoil principle. USP pistols are fitted with new recoil suppressing mechanism. This new mechanism decreases recoil power as well as weapons tossing after each shot. This feature increased fire accuracy and fire comfort, comparing with other pistols. USP automatic's service life is about 20 000 shots. Pistol's automatic allows only single fire.
USP frame is made from plastic polymers, lock and barrel - from stainless steel. One of USP family feature is wide scale of hammer mechanisms (9 types), including with or without automatic safety-lock, self-action and double-action mechanisms or double-action only. Barrel, with 6 rifles, is fully hided in barrels box.
Pistol has opened fixed sight, intended for 80 m range. Laser sight or searchlight hardpoints are placed under the barrel.
In year 1994 there was presented "Compact" (USP P10) modification with smaller dimensions. In year 1995 - modification, chambered for .45 ACP and intended for USA weapon market. Later one more modification "Tactical", fitted with longer barrel, sound suppressor connection screw, and adjustable sight, was developed.
Along with combat modifications, there are developed some USP sport models. USP "Match" has barrel, fitted with polygon rifles and compensator, serving as a flame-hider as well. It increases weapons stability and fire accuracy. Modification "Expert" has 152 mm length barrel and increased till 18 rounds magazine capacity.