Mounting red dot optics, like the Trijicon RMR, on shotguns has become super popular. The GG&G 1301 Optic Rail with your choice of a full or half ghost ring fills the bill so to speak, for the Beretta 1301 Shotgun. Whether you are hunting with the 1301 or using it in self defense tactical situations, a quick target acquisition red dot certainly comes in handy.