Semi-Automatic Shotgun Specially Designed For Combat The Benelli M4 Tactical Shotgun has truly earned the title – the first tactical shotgun. The Benelli M4 uses a semi-automatic operation first developed by the US Army Armaments Research called ARGO-Auto Regulating Gas Operated. Benelli’s version of ARGO utilizes only four parts, making it simple and extremely reliable.
The Benelli M4 Tactical 11707 shotgun is a modular firearm, meaning the operator can easily replace various assemblies (Barrel, Butt stock & Forearm) without the use of tools. The US Marines are using this model Benelli M4 Tactical Shotgun MPN 11707 and there are some other armed forces all over the world which are the buyers of the same.