I have an HK SP5 chambered in 9mm. This pistol is one of the most well known firearms of all time. This pistol features HK roller delayed blowback system which allow for smooth recoil impulse. It features a 8.85 inch barrel, an upgraded Midwest Industries MLOK rail for attaching accessories, an SB side folding brace, and B&T picatinny mount. The pistol also features a built in trilug and 1/2x28 threaded barrel. It comes with four 30 rd HK magazines, the original parts and furinture and the HK carrying case. . Not Trading