HK VP9A1 K Tactical w/Optic 9mm Luger 15+1 4.7" Black Threaded Barrel, Black Steel Serrated w/Optic Slide, Black Polymer Frame w/Picatinny Rail, Textured Grip, Vortex CCW The VP9A1 K Tactical stands out with its 4.70" hammer-forged barrel with a threaded muzzle and suppressor-height sights. The sights provide a 1/3 Co-Witness through the window of a red dot sight while remaining visible over the top of most suppressors. Includes Vortex CCW and two magazines.