HIVIZ Ruger BlackHawk Overmolded Fiber Optic Front Sight (Green) Ruger Blackhawk front revolver sight Resin overmolded green front sight Fits Blackhawk Super Blackhawk and Bisley models with pinned front sight Does not fit stainless steel models HiViz recommends gunsmith installation for all dovetail sights. Due to manufacturing tolerances, some firearms may require additional fitting.