Shotgun Benelli M4 Super 90 is designed and developed in Italy by Benelli Armi Spa and it is imported into the United States (including for the needs of the Armed Forces) by Heckler & Koch USA, inc.
In early 1999, US AARDEC (Army Armament Research and Development Center – Center for the development of the US Army Vorruzheny) issued a contract for the M1014 Joint Service Combat Shotgun – single shotgun company Heckler & Koch USA, inc. Under the contract, the US subsidiary of the company Heckler-Koch must deliver 20,000 rifles from Italy for arms US Marine Corps. There are also further deliveries for the needs of other branches of the US troops.
Technically, Benelli M4 Super90 is a semi-automatic slip rifle. A drive of automation is vented in two symmetrically placed under the barrel gas cylinder, with two gas pistons and rods for greater reliability. Barrel locking is turning the bolt on the two lugs. The chamber is configured for cartridges 3 inches (76 mm), however, the gun is designed so as to work as smoothly and with cartridges length 2.75 inches (70 mm) without any adjustment.
Partial disassembly and assembly of the gun are carried out without tools. Standard rifle is equipped with a telescopic sliding butt, which can be replaced with a pistol grip or plain awkward butt when needed. Sight is a diopter rear sight and the usual front sight of rifle type. Furthermore, on top of the receiver weaver rail is mounted for setting different scopes (night, collimator) and other devices.
Covering of all metal surfaces, both exterior and internal, is made matt not reflect light, and having improved resistance against corrosion and wear. The trunk can be replaced by a shorter, 355 mm in length. The barrel is equipped with a screw chokes for higher flexibility.