Based on the full-size USP models, The HK USP Compact combines compact size with optimum effective shooting performance. The reduction in trigger reach and grip circumference increases concealability and enhances shooting ergonomics. Unlike some subcompact semiautomatic pistols that use a difficult to shoot two-finger grip frame, the USP Compact uses a narrow, full-hand grip frame with a choice of interchangeable extended or flush-fitting magazine floorplates. To reduce the length of the slide and barrel on the USP Compact, the mechanical recoil reduction system found on large frame USPs has been replaced by a specially designed flat compression spring contained in the captive recoil spring assembly by a polymer absorber bushing. Easy to shoot, simple to maintain; the USP Compact is a reliable, safe, accurate, and highly concealable pistol.