All USPs use a fiber-reinforced polymer frame stiffened by stainless steel inserts at areas subject to stress and friction. The control lever, a combination safety and decocking lever, is frame mounted and quickly accessible, unlike the slide mounted safeties common on many semi-automatic pistols. Using a modified Browning-type action with a special patented recoil reduction system, the USP recoil reduction system reduces recoil effects on pistol components and also lowers the recoil forces felt by the shooter. This same recoil reduction system has been tested and proven in the HK Mark 23 pistol developed for the U.S. Special Operations Command.
The modular design of the USP's internal components allows the control lever function to be switched from the left to the right side of the pistol for left-handed shooters. The USP can also be converted from one type of trigger firing mode to another. This includes combination double-action and single-action (DA/SA) modes and double action only (DAO) modes. The USP is available in nine trigger/firing mode configurations and three calibers. 9mm, .40 S&W and .45 ACP.

USP VARIANTS
Variant models other than Variant 1 are available by special order. A $25 surcharge applies. Adds 6-8 weeks to leadtime.

• Variant 1 DA/SA with control lever (safety/decocking lever) on left. Standard model.
• Variant 2 DA/SA with control lever (safety/decocking lever) on right.
• Variant 3 DA/SA with control lever (decocking lever) on left.
• Variant 4 DA/SA with control lever (decocking lever) on right.
• Variant 5 DAO with control lever (safety lever) on left.
• Variant 6 DAO with control lever (safety lever) on right.
• Variant 7 DAO with no control lever.
• Variant 9 DA/SA with control lever (safety lever) on left.
• Variant 10 DA/SA with control lever (safety lever) on right.