If you're looking for a smaller, more affordable alternative to the CompSight, the HIVIZ MiniComp is a popular choice. Like all HIVIZ bead sights, MiniComp is bright and easy to install, and is the only Hiviz bead sight offering an orange LitePipe in addition to the standard green and red. Features: Fits most vent-ribbed shotguns with removable front bead Sight includes (5) screws in varying thread sizes to fit nearly any shotgun 3-56, 5-40, 6-48, 3mm x 0.5, 3mm x 0.6 LitePipe diameter 0.1 inches