Mesa Tactical Urbino Tactical Stock, Fits Benelli M4, Fixed, Fits with a Tactical Length of Pull, Riser, Limbsaver, Black 91470 Mesa Tactical's Urbino Pistol Grip Stock for the Benelli M4 is very popular in the law enforcement market due to the shorter length of pull" allowing the user to wear body armor or bulky clothing without extending their reach. The reduced length-of-pull (LOP) makes the Urbino the first truly tactical stock for the Benelli M4. The Urbino Tactical stock is durable" easy to shoulder" and will not slip. It is a fixed-length pistol grip shotgun stock made from injection-molded glass-filled nylon. Developed to meet the needs of law enforcement and military operators" the rugged Urbino Tactical stock features a 12-1/2" inch LOP" soft urethane rubber grip" adjustable cheek riser and Limbsaver Buttpad.