Benelli’s M4 has been in service with the U.S. military since 1999, after receiving the Joint Service Combat Shotgun Award and winning the contract to serve the U.S. Marine Corps. It is now used widely throughout the U.S. military, and has seen service in Afghanistan and Iraq. The M4 was Benelli’s first shotgun to employ its ARGO (auto-regulating gas operated) short-stroke gas system in which dual pistons cycle a rotating bolt—a design Benelli is known for in its autoloaders. The self-contained gas system not only requires fewer operational parts, it is also self-cleaning. For many of the same reasons the autoloader is favored by military worldwide, including its modularity and ability to be quickly reconfigured, the civilian-version M4 (18.5” barrel and reduced magazine capacity) is chosen today by millions as their all-around shotgun for home defense or 3-gun competition. In our latest NRA Gun of the Week video, American Rifleman’s Brian Sheetz discusses all of the features that are packed into this modern semi-automatic shotgun. For more, visit benelliusa.com.