Benelli

Source: Wikipedia. Pages: 34. Chapters: Benelli motorcycles, Benelli M4, Benelli M3, Benelli Nova, Benelli Supernova, Benelli Raffaello CrioComfort, Benelli CB M2, Benelli 750 Sei, Benelli M1, Benelli Tre 1130 K, List of Benelli motorcycles, Benelli Volcano. Excerpt: The M4 Super 90 is an Italian semi-automatic shotgun manufactured by Benelli Armi S.P.A. On May 4, 1998, the U.S. Army Armaments Research, Development and Engineering Center (ARDEC) at Picatinny Arsenal, NJ issued Solicitation #DAAE30-98-R-0401, requesting submissions for a new 12 gauge, semi-automatic combat shotgun for the US Armed Services. In response to the request, Benelli Armi SpA of Urbino, Italy designed and built the Benelli M4 Super 90 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 early 1999, ARDEC awarded the M1014 Joint Service Combat Shotgun contract to Heckler & Koch, USA subsidiary for importation of the Benelli M4 Combat Shotgun. The first units (count of 20,000) were delivered to the United States Marine Corps in 1999. During testing, the prototype was called the XM1014, but after adoption, the 'X' was dropped, and the weapon was officially designated the M1014. The M4 was the first gas-operated shotgun produced by Benelli. Its function is designed around an entirely new method called the "auto regulating gas operated" (ARGO) system. The ARGO system on the M4 opened the door for Benelli's development of the R1 rifle line. The 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. Benelli accomplishes this level of reliability through the simplicity of the mechanism. The ARGO is a short-stroke system that incorporates only four parts. It consists of two symmetrical shrouds containing two small steel gas pistons. It is also self-regulating for cartridges of varying length and power levels. It can fire 2.75 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