Attach Dead Ringer's ultravivid Accu-Bead Extreme to your shotgun and aiming in low-light conditions becomes much easier. The set of six interchangable optical Lexan light pipes are 10-times stronger and more visible than fiber-optics rods. Made of machined T-6 aircraft aluminum, the three low-profile, universal shotgun sights are magnetic and come with safety screws to prevent loss. Twist Lock keyways make installation quick and simple. Fits most ribbed shotguns.