Hi-Viz CompSight Litewave Sight, Fits All Vent Rib Shotguns, Front Sight, Includes Litepipes and Key PMLW01 HIVIZ(R) CompSight(R) LiteWave(R) Shotgun Sight. Screw-Attach design replaces the front bead on a shotgun. Fits most vent-ribbed shotguns with removable front bead. Includes three Green" three Red and one White replaceable LitePipes in three diameters.