Tactical 30mm Extra-High-Single-37mm Tall

Vortex Tactical 30mm Ring - Extra High - Single Mount - 37mm. Robust 6-screw Tactical Ring is perfect for mounting red-dot optics, magnifiers, and other accessories with 30mm tube diameters to your Picatinny rail. When using this ring to mount a conventional riflescope, we strongly recommend lapping the rings for a proper and secure fit for your optic. Provides absolute co-witness on an AR15 platforms.
This Vortex Tactical Ring positions the center of the riflescope tube at a height of 1.46 inches (37.0 mm) from the base.