HIVIZ Glock Overmolded Fiber Optic Tactical Front Sight (Green) Fits: all glock's, except for ported or compensated models Color: green Front sight for Glock Glock Tactical font sight Resin overmolded Green LitePipes Tactical bead size .120" diameter Fits all Glock models except ported or compensated models HiViz recommends gunsmith installation for all dovetail sights. Due to manufacturing tolerances, some firearms may require additional fitting.