The Heckler & Koch VP9A1 K Tactical combines the compact "K" slide with a 4.70-inch threaded barrel for suppressor use. The VP9 platform's striker-fired action provides a clean, consistent trigger pull. Suppressor-height sights co-witness over most mounted optics and clear standard suppressor bodies.The optics-ready slide is milled to accept micro red dot sights. The 10-round magazine meets capacity restrictions for states like California. The VP9A1 designation indicates the version with no manual safety and paddle-style magazine release. The K-size slide on a compact frame gives a shorter sight radius than the full-size VP9 while remaining compatible with VP9 holsters that accommodate threaded barrels.