Benelli M4

The Benelli M4 is an Italian semi-automatic shotgun manufactured by Benelli Armi SpA. It is in use by the United States Armed Forces where it is designated the M1014.

The M4 was the first gas-operated shotgun produced by Benelli. It is self-regulating for use with cartridges of varying length and power levels. It can fire 2.75 (70 mm) and 3-inch (76 mm) shells of differing power-levels without any operator adjustments and in any combination. Low-power rounds, such as less-lethal rubber pellets, must be cycled manually.

The sights are military-style ghost ring and are adjustable in the field using only a cartridge rim. The MIL-STD-1913 Picatinny sight rail on top allows use of both conventional and night-vision sights, while retaining use of the original sights.