Heckler & Koch MP7
The Heckler & Koch MP7 (German: Maschinenpistole 7) is a personal defense weapon chambered for the HK 4.6×30mm armor-piercing cartridge designed by German defence manufacturer Heckler & Koch. == History == It was designed (together with the new cartridge) to meet NATO requirements published in 1989, which called for an SMG-type weapon with a greater capacity to defeat Kevlar body armor (versus pre-existing submachine guns using conventional pistol cartridges such as the .45 ACP and 9×19mm Parabellum).