If you/he has an astigmatism you/he may not like a red dot. It will not appear crisp and the edges of the dot will be fuzzy. I have an astigmatism and an Aimpoint PRO. I can hit an 8" plate at 100 yards but I can't hit anything at 200. An illuminated prism scope with an etched reticle will be sharper if you have this condition.