Thanks a lot gents! I gues the reason for this (and you can tell me if it is a good or bad idea) is that I need 30 MOA on my scope but the bobro QD for 34mm only comes in 0 MOA and 20 MOA. I don't want to get a 30 MOA base for my bolt gun, because my AR has fixed 0 MOA rail... so this way, when...