![]() ![]() 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. The ARGO incorporates only four parts: two symmetrical shrouds containing two small steel gas pistons.Īdditionally, the weapon is self-regulating for use with cartridges of varying length and power levels. The short-stroke design uses two stainless-steel self-cleaning pistons located just ahead of the chamber to function opposite the rotating bolt, thereby eliminating the need for the complex mechanisms found on other gas-actuated automatics. Its function is designed around an entirely new method called the "auto regulating gas operated" (ARGO) system. The M4 was the first gas-operated shotgun produced by Benelli. During testing, the prototype was named XM1014, but after adoption, the 'X' was dropped, and the weapon was officially designated the M1014. ![]() ![]() The first units (count of 20,000) were delivered to the United States Marine Corps in 1999. In early 1999, ARDEC awarded the M1014 Joint Service Combat Shotgun contract to Heckler & Koch, American subsidiary for importation of the Benelli M4 Combat Shotgun. On August 4, 1998, five samples of the M4 were delivered to Aberdeen Proving Ground, Maryland, and after intense testing, the M4 had beaten the competition. In response to the request, Benelli Armi SpA of Urbino, Italy designed and built the Benelli M4 Super 90 Combat Shotgun. On May 4, 1998, the United States Army's Armaments Research, Development and Engineering Center (ARDEC) at Picatinny Arsenal, New Jersey issued Solicitation #DAAE30-98-R-0401, requesting submissions for a new 12 gauge, semi-automatic combat shotgun for the U.S. ![]()
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