I used to have it mounted in front of the carrying handle, but now have a flat top and a rail system as the handguard.
Now I have the option of mounting it as far front or back as I want.
It is an EOTech with the circle and red dot in the center.
I did notice that when held close to the eye the circle and do are much larger then when held further away.
Is there an optimum distance the EOTech should be mounted from the eye?
what kind of carry handle? removable? or fixed? that may dictate where you mount it, unless you invest some $$$ in a special mount...if you have a flat-top, then mounting location may depend on distance to target and target movement..it would seem mounting it closer to your eye would be helpful if the target is close and target moves..if your targets are 75m - 100m + and stationary, then mounting it farther away from your eye might be better..experiment with both !