TruGlo Magnum Glo-Dot Xtreme Vent Rib Sight 5/16" Green   #TG904XB

Each model easily snaps over rib without need for screws. Ultra-tough composite construction. Fiber diameter: .060''.

5/16" fits most Benelli Browning BPS, Ithaca, Ruger Red Label, Savage and 8mm ribs.