Sport 30mm Single Cantilever Ring Absolute Co-Witness - 37mm

The Vortex 30mm Riflescope Ring provides absolute co witness mounting height and will work with most 30mm red dot sights.The Vortex Cantilever 30mm Ring provides extra rail room for rear Back Up Iron Sights (BUIS) when using the StrikeFire red dot along with the VMX 3T magnifier. The Vortex Cantilever Mounting Ring will move the StrikeFire forward about one inch. Provide extra rail room for rear BUIS when using the StrikefireII red dot along with the VMX 3T magnifier. Available for 30mm tubes in absolute co witness and lower 1/3 co witness.