one piece base mount needed cva optima pro mag:
 

any one know of a base mount for the optima pro mag:
The eye relief for me is still to short with 4" on the scope bushnell: I need a base mount to get the scope back about a good 1" to the rear.The cva rifle LOP are for long arms my LOP runs 13 1/2"

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.

specify pre-2010

Cut the stock to fit you. That's what I did to mine.