The Holosun HE509T with its titanium housing, Multi-Reticle System and Solar Failsafe charging sytem has become very popular with shotgun shooters. Mounting red dot reflex optics, like the Holosun, with co-witness iron sights on shotguns has become super popular and a tactical requirement for some users. The GG&G 1301 Holosun Optic Rail with your choice of a full or half ghost ring fills that mission requirement for the Beretta 1301 Shotgun. Whether you are hunting with the 1301 or using it in self defense tactical situations, a quick target acquisition reflex red dot certainly is a valuable addition. Add the backup sight that co-witnesses with the HE509T in most applications, and you have the best of both worlds.