Lighting can affect peoples ability to see and astigmatism can adversely affect whether a person can clearly see a red dot sight. A Holographic sight with a magnifier can work for some people. An older Friend of mine uses a Nikon P223 scope which has a BDC with 1.5-4.5 magnification. My son in Law has a Bushnell AR/223 1-4 2nd focal plane scope that was inexpensive with good glass. I have the Bushnell AR 1-4 FFP illuminated reticle but it is not daylight bright and at 1x the reticle is really small which is a disadvantage.
Honestly Id have the person test several different optics, Red Dots, Holographic RDS, with magnifier, LPVO and low power optics like 2-7, 3-9, 2.5-10.
Honestly Id have the person test several different optics, Red Dots, Holographic RDS, with magnifier, LPVO and low power optics like 2-7, 3-9, 2.5-10.

