Developed to be an improvement of the popular and widely used USP45, the HK HK45 V1 Semi-Auto Pistol brings you the best of the USP Series while adding new features demanded by professional end users. An adjustable grip incorporates interchangeable backstraps and lateral grip panels, so you can easily modify it to fit your carry style. The HK45 also boasts a proprietary O-ring barrel for precise barrel-to-slide lockup and optimal accuracy. Each HK barrel is made using the famous HK cold hammer-forging process for superior accuracy and longevity. This is the V1 model, which features a DA/SA trigger and slide-mounted safety/decocker. Other features include an ambidextrous slide release, ambidextrous paddle-style mag release, and a Picatinny rail for lights and lasers. Fixed front sight/open square notch rear sight. Includes 2 magazines. Improved version of the USP45 Interchangeable backstraps and grip panels O-ring barrel for precise barrel-to-slide lockup Cold hammer-forged barrel Double-action/single-action trigger Slide-mounted safety/decocker Ambidextrous slide release Ambidextrous paddle-style mag release Fixed front sight/open square notch rear sight