H&K VP9B, 9mm, 4.09" Barrel, Flat Dark Earth Frame, Black Slide, Night Sights, 17 Round Experience gained by HK engineers with the P30 hammer-fired pistol had a direct influence on the design of the VP9, but the VP9 breaks new ground with its integration of a unique striker firing system with an enhanced HK light pull trigger. The net result is a pistol with custom-fit ergonomics with trigger quality unequaled in any production striker fired handgun.