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. Every detail" including the grip angle" the contour of the front strap and the high rear saddle were chosen to fit the human hand. And the adaptable grip frame allows you to interchange both backstraps and grip panels in 27 unique configurations to fit your hand. All of these features help you get the same consistent grip" every time you pick up your VP. The VP trigger surpasses those found on competitors. It has a short" light take-up with a solid" single action type break followed by a short positive reset. In addition to these features" all controls are completely ambidextrous including HK's patented charging supports simple components that are mounted on each side of the rear of the slide and provide better gripping leverage for racking the slide rearward. The charging supports speed reloading and make operating the VP9 easier for shooters with reduced hand strength. HK's famous cold hammer forged barrel made from cannon grade steel ensures long service life. Similar HK barrels on 9 mm P30 models fired more than 90"000 rounds in endurance tests in 2010. The polygonal bore profile" with no traditional lands-and-grooves rifling" contributes to longer service life as well as a slight increase in muzzle velocity. VP pistols are made in Heckler & Koch's Oberndorf factory in southwest Germany and are covered by Heckler & Koch's limited lifetime warranty.