Introduced in 1998. O-ring barrel with polygonal bore profile, elongated milled target slide made from nitro-carburized steel, ambidextrous control levers on both sides of the frame, match grade trigger, adjustable trigger stop, target sights with micrometer adjustment for windage and elevation, patented HK recoil reduction system, fiber-reinforced polymer frame, oversized trigger guard, universal mounting grooves for installing accessories, ambidextrous magazine release lever, extended slide release, extractor doubles as a loaded chamber indicator, patented Lock-Out Safety device. With factory case numbered to another gun, takedown tool and manual, and test cartridge.