The MP7A1 is smaller than a conventional submachine gun, compact, and lightweight, it serves as a personal defense weapon that can be carried like a handgun, yet is capable of rifle-like effectiveness. The 4.6 x 30 mm ammunition provides the penetration approaching that of an assault rifle round and is able to defeat the types of body armor frequently found in the hands of terrorists and criminal gangs, in particular, that of the former Soviet Bloc special forces, now the standard NATO test target (CRISAT). Adopted and fielded by several of the world’s leading special operations units, the gas-operated MP7A1 fires from the closed bolt position, using a rotary locking bolt system. The MP7A1 handles like a pistol yet allows targets to be engaged like a rifle. With its 7-inch barrel, the MP7A1 is capable of firing 10-shot semiautomatic groups at 45 meters of less than 2 inches. The MP7A1 is manufactured predominantly of carbon fiber reinforced polymer with embedded metal components where needed. The weapon can be field stripped in seconds without tools and requires little cleaning due to its unique gas system. The lethal 4.6 x 30mm cartridge produces minimal felt recoil (50% of a 9mm NATO round) to assure that multiple hits are easily obtainable in all modes of fire, incapacitating the target through penetration. The MP7A1 is fitted with a removable full-length MIL-STD-1913 (Picatinny) rail on the top of the receiver for mounting a variety of optional targeting devices. Standard folding mechanical peep sights can be fitted to the top rail or an optional 24-hour reflex sight can be attached in seconds without tools. The reflex sight provides a single red aiming dot for 24-hour use when the weapon is fired from the shoulder or at arm’s length like a handgun.