HIVIZ Flame Fiber Optic Shotgun Sight (Green) Hi-Viz Flame front bead Fits most vent ribbed shotguns Shoot better on the line and in the field Easy to install and rugged Fits most shotguns Flame front sight replacement Steel base Non interchangeable LitePipe in green Fits most vent-ribbed shotguns with removable bead HiViz recommends gunsmith installation for all dovetail sights. Due to manufacturing tolerances, some firearms may require additional fitting.