Actually, I the lack of co-witness ability has more to do with the sight, than the mount. The MI mount is definitely grooved to allow co-witness, but the sight itself it not. There is no spacing between the mount and the bottom of the sight to allow co-witnessing.
MAC also did a review of the MI mount which I really liked.
"The Marines I have seen around the world have, the cleanest bodies, the filthiest minds, the highest morale, and the lowest morals of any group of animals I have ever seen. Thank God for the United States Marine Corps. Eleanor Roosevelt, 1945"
Last edited by Steve in PA; 03-10-2013 at 08:20..