The HK USP utilizes 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. 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 reduction in trigger reach and grip circumference increases concealability and enhances shooting ergonomics. It utilizes a narrow, full-hand grip frame with a choice of interchangeable extended or flush-fitting magazine floorplates. The USP Compact features a polygonal bore barrle, one-piece steel slide with contoured, extended release, bobbed hammer, universal mounting grooves and ambidextrous magazine release lever. Includes two magazines.