I am mounting an Aimpoint COMP M3, 2 MOA red dot on flat top upper. FSB is F marked. What riser should I be using? Now have a A.R.M.S. TriLock and it seems low? Matter of fact I know it is low. Eyeball can tell you that. Want to co witness the front sight. Will remove FSB if best idea/solution?

Trying to laser sight and just not getting there?
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