The TruGlo TG947BGM Long Bead Metal fiber optic front sight provides enhanced target acquisition with bright green fiber optic technology and durable CNC machined steel construction.TruGlo TG947BGM Long Bead Metal Fiber Optic Front SightBright green fiber optic for improved visibilityCNC machined steel frame with black finish3-56 thread configuration for secure mountingCompatible with Ruger and Winchester shotguns (Models 1200 1300 1400 Super X2)Designed specifically for shotgun applicationsIdeal for hunters and sport shooters seeking improved accuracy and faster target acquisition on their shotgun. The fiber optic technology gathers ambient light for enhanced visibility in various lighting conditions.