Developed to be an improvement of the popular and widely used USP45, the HK HK45 Tactical V1 Semi-Auto Pistol brings you the best of the USP Series while adding new features demanded by professional end users. One of the handgun's most unique features is the proprietary internal mechanical recoil reduction system: a flat recoil spring works in tandem with a polymer bushing sleeve to reduce felt recoil significantly. 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 HK45 Tactical model features a threaded barrel and adjustable TruGlo high-profile sights that are suitable for use with a suppressor. This is a 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. Includes 2 magazines. Improved version of the USP45 Internal recoil-reduction system Interchangeable backstraps and grip panels O-ring barrel for precise barrel-to-slide lockup Cold hammer-forged, threaded barrel Double-action/single-action trigger Slide-mounted safety/decocker Adjustable, high-profile TruGlo sights Ambidextrous slide release Ambidextrous paddle-style mag release