Having had the same issues, i purchased dednutz. Mine is one piece rings and base. The hinder ring is about 1" behind the hinder pair of holes, which should give you the needed rearward scope placement. One need specify pre-2010, or 2010, because CVA moved the front pair of holes closer to the hinder pair of holes in 2010. Haven't looked any further, and can't help, if you wish to use your rings.