HIVIZ Smith&Wesson 1911 Overmolded Front Fiber Optic Sight (Red) Smith and Wesson front sight for 1911 Resin overmolded red front sight Fits Smith and Wesson 1911 model pistols (except 1911 DK) HiViz recommends gunsmith installation for all dovetail sights. Due to manufacturing tolerances, some firearms may require additional fitting.