Note, if you (anyone) goes with a red dot sight, look into the Holosun red dots. I now have a few, both on my powder fire guns and also my air fired guns.
One thing that makes them top picks, is they have the normal dot, but also have a ring around the dot. This ring goes a LONG way toward fast target acquisition. A couple other brands also have the ring, but overall, I've been happier with the Holosun brand. Tuff too, they can withstand dropping without changing the point of aim, even to having cracked lens glass, they still work. See You-Tube video tests.
Mike