I'm wanting to buy rings/unimount to mount a NF ATACR 5-25x56mm to a flat rail on a RPR that has a 20moa built in. I will buy both together when I place my order. I took a NF 12-42x56mm and tried a fit. Getting clearance for the objective lense would take 1.500 height rings/unimount. This is 30mm tube, the new scope is 34mm, will the 1.500 height be the same? I'm thinking not. What works for you?