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 patented recoil reduction system, the USP is built to take the punishment of powerful +P and +P+ loads. The recoil reduction system reduces recoil effects on pistol components and also lowers the recoil forces felt by the shooter. The USP recoil reduction system is insensitive to ammunition types and requires no special adjustment or maintenance. It functions effectively in all USP models.
By using a modular approach to the internal components, the control lever function of the USP can be switched from the left to the right side of the pistol. 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 (DA-Only) modes. The USP is available with Nine Trigger/firing mode configurations and Three Calibers - ACP, S&W, and 9. USP Slides are available in both Matte Black and Stainless Steel.