I currently have a Midwest Industries quad rail. But from my old setup I also have a S.W.A.N. sleeve with BUIS. The sleeve sits up higher so the a optic doesnt need to be raised. Well this seems a little redundant to me having two top rails. So I picked up a MATech BUIS and want to get rid of the sleeve. I believe all I need now is a mount for my Aimpoint Comp M to raise it up to the correct height. Is this correct? Any suggestions?