Thanks for the read, by the sounds of it, most are not truly parallax free, as it's more of a selling gimmick?
If so, kind of disappointing, as it was the one feature that truly interested me in a reflex type sight, since I've always used open sights.
So I'm guessing if a sight is truly parallax free one could mount their gun in a vise and center the dot precisely on a target while checking the gun, then slightly move there head and if the dot moves of center it isn't parallax free? Is this correct? as I'm trying to understand this feature, if it truly exist?