Red dot use is pretty simple. Zero it. Put the red dot on the target and shoot. When I zero my red dots they usually set over the top of my front sight post. Doesn't bother me. Some folks use a riser to get a lower 1/3 cowitness.
My setup on my AK is the same. I didn't use the Kvar forearm though
Have a nice day at the range
NRA Life Member