Extensively tested and operationally proven, the HK45 Series is a new paradigm for Heckler & Koch handgun design. Capable of firing standard .45 ACP ball through +P ammunition, the HK45 combines the accuracy, modularity, reliability and minimum 20,000 round service life of the famed USP45 series with the improved ergonomics of the P2000 series pistols. The HK45 uses an HK proprietary O-ring barrel for precise barrel-to-slide lockup and optimal accuracy. HK45 barrels are made using the famous HK cold-hammer forging process and feature polygonal rifling for longer barrel life and better accuracy. The HK45's improved USP-style control lever, a combination safety and decocking lever, is frame-mounted for quick accessibility and can be switched from the left to the right side of the pistol to accommodate left-handed shooters. An integral Picatinny rail is molded into the polymer frame dust-cover for mounting lights, laser aimers, and other accessories. Smaller in length and height than the standard HK45, the HK45 Compact uses a slim-line grip profile, but otherwise is nearly identical in features to the full-size HK45. This double-action-only pistol features fixed 3-dot sights and includes two 8-round magazines and the original factory case. Its grips, metal, and bore are all in excellent condition.