cantilever scope rings ring 30mm offset absolute co witness
provides extra rail room for rear back up iron sights buis when using the strikefire red dot along with the vmx 3t magnifier the cantilever ring will move the strikefire forward about one inch will work with most 30mm red dot sights positions red dot sight at either an absolute co witness height or a lower 1 3 co witness height mfg vortex optics