TACTICAL 30MM RIFLESCOPE RING Lower 1/3 Co-Witness [1.57 Inches 40.0 mm]
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 lower 1/3 co-witness on an AR15