The Benelli M4 Series is a line of semi-automatic tactical shotguns specifically designed for military and law enforcement use, as well as civilian self-defense and home protection purposes. Manufactured by Benelli USA, the M4 Series is based on the M1014 shotgun, which was originally developed for the U.S. Marine Corps. The M4 shotguns utilize a unique gas-operated system that enhances reliability and reduces recoil. This system allows the shotgun to cycle a wide range of loads effectively. The shotguns come with a fixed tubular magazine located under the barrel that can hold several rounds of 2.75" or 3" shotgun shells. The M4 Series typically features a pistol grip stock, enhancing control and maneuverability, especially in close-quarters engagements. Many variants of the M4 come equipped with ghost ring sights, providing fast target acquisition and improved accuracy. The M4 shotguns have a Picatinny rail (MIL-STD 1913 Accessory Rail) on top of the receiver, for mounting various optics and accessories. Built to withstand demanding conditions, the M4 Series shotguns are constructed with durable materials, such as steel and aluminum, ensuring long-lasting performance and resistance to harsh environments. The Benelli M4 shotguns, originally designed for military and law enforcement, have become popular among civilians for home defense and practical shooting. Civilian models are compliant with U.S. Federal Law, adhering to barrel length and overall length restrictions. The Benelli M4 Series is highly regarded as a top choice for tactical shotguns, known for its reliability, durability, and wide use by military and law enforcement, making it an excellent option for defensive applications.