The HIVIZ CompSight has become the standard for competitive shotgun shooters and is the choice of national and Olympic champions. Utilizing a low-profile steel base, LiteWave CompSight offers all the advantages of the light gathering technology of LiteWave combined with the unsurpassed durability that the wave exoskeleton provides. Includes multiple diameters of LitePipes in red, green, and white along with a LitePipe storage/changing key. Fits most vent-ribbed shotguns with removable front bead. Sight includes five screws in varying thread sizes to fit nearly any shotgun: 2.5mm x 0.45mm/3-56; 5-40; 6-48; 3mm x 0.5; 3mm x 0.6. Round LitePipe Shape. Fiber Diameter: 0.110,0.120,0.135mm.