"The HK VP9A1 X Tactical Optics-Ready Semi-Auto Pistol enhances the proven VP9 formula with a better trigger, better ergonomics, improved controls, and optics compatibility. The VP9A1 X is the crossover model, combining the compact barrel of the VP9A1 K with the full-size grip of the VP9A1 F, providing quicker handling and holstering along with the easy control of a larger frame. The VP9A1 trigger has a PTFE-coated trigger bar and short, light take-up with an exceptional single-action break followed by a short, positive reset. The grip angle, front-strap contour, and high rear saddle were all designed to perfectly fit your hand. With interchangeable back straps and side grip panels, you can create 45 different configurations to dial in your precise fit. Controls are ambidextrous, making the VP9A1 X Tactical ideal for right- and left-handed shooters. This model features a threaded muzzle and suppressor-height sights that provide co-witness with red dots. The optics-ready slide accepts a wide range of popular red dots with 9 available optics plates (not included). Front and rear slide serrations. Flared magazine well. Improves upon the VP9 with a better trigger, better ergonomics, and ambidextrous controls Crossover ""X"" model with compact slide/barrel and full-size frame Barrel with threaded muzzle Nickel Teflon-coated trigger bar for smoother pull Short, light trigger take-up and short, positive reset Interchangeable side and rear grip panels Ambidextrous controls for right- and left-handed shooters Optics-ready slide Front and rear slide serrations Flared magazine well"