The Benelli M4 Tactical shotgun is a unique, Auto-Regulating Gas-Operated semi-auto with battle-proven reliability. Originally designed in 1998 for the U.S. Marine Corps, the M4 was extensively tested at the Aberdeen Proving Ground in Maryland, proving totally reliable for safety, function, and performance. Chamber pressure is contained by a massive 2-lug rotary locking head, which locks into the steel barrel extension. The trigger guard and safety are ergonomically designed, blending style and function. A picatinny top rail is providing for the mounting of scopes and other aiming devices. This shotgun features a desert camo finish, a blade front sight, a ghost ring rear sight, and a modified choke tube and comes with the original factory box. Its stock, metal, and bore are all in very good condition.