TRUGLO MNT SHOTGN RIB UNIV TG/VOR/DOC

Designed to mount a dot-optic to shotgun ventilated rib – Fits 0.236 in. (6mm) to 0.395 in. (10mm) ventilated ribs width – Optic stays with the barrel and maintains zero when changing barrels for different seasons – Mounting hardware and tools included – Rigid two-clamp mounting system – Allows optic to sit low on the rib