Problem. I need to confirm that it is my Aimpoint mount that is the wrong height.
I purchased and mounted my Troy Irons on an A3 Colt upper for the rear and a LaRue 9.0 for the
front. I also purchased and was told that I will need the taller Aimpoint mount  in order to co witness with my irons. Unfortunately once all was installed the Aimpoint mount is apx 1/2" higher. Can anyone answer what Larue mount would work correctly. Obviously not the manufacturers fault. Just want the right mount height.
JB

either the tall one of the cantilever one would co-witness in the lower third