Originally Posted by blackcaddi
I also use one of these, with a replica aimpoint and the standard low mount it comes with. Slight adjustments to the reticule position, and I had it right on top of my front sight while looking through the rear sight. Perfect height. This is ideal, to have them lined up with your sights. There was a thread with this earlier. You should zero your irons to your BB's flight, then zero your RDS to your irons.