I made my own, took the cheap red dot off the rocker, then using a bandsaw, or other tool and cut the hole piece off of the rocker and sand down to a flat surface. Purchase a weaver rail that has four screw holes, drill and install it with pan head wood screws. Works like a champ, and you don't reward Horton for purposely designing it to make you pay a bunch of money for what should be a ten dollar rail.