American Rifle Company 35mm scope rings in 35mm diameter, and 28mm (1.1" medium) height. Ideally for Leupold MK5 HD scope owners, as well as the gen 1 vortex razor I believe. $130/o.b.o. shipped (pp/ff or vnmo). I switched to a qd mount, no longer need these, though such a simple design with only 2 screws per ring.