NcStar 30mm Adjustable Height Ring w/ 1in. Insert

NcSTAR NcSTAR 30mm Adjustable Height Ring with 1in Insert. Unique split ring design with elevation screw. Turn the elevation screw to raise or lower the ring height. Set screws on each side lock the ring height in place. Mounts onto Weaver/Picatinny/MIL-STD 1913 rails. Perfect for use with magnifiers to center align the magnifier with the reflex optic. Sold as a single ring. Overall height: 2.07" – 2.25". Optic center height can be adjusted from: 1.39" – 1.56". Weight: 2.6 oz. Specifications: Finish Matte, Tube diameter 30 mm, Ring quantity: Single.