Important Info: This sight is indeed parallax corrected, but only if the target is 25 yards or more away (This info comes from experience as well as Sightmark technical support). This is why in situations where close combat is a possibility, you will want to get a $500 optic.
Review: First off I must say that this sight has extremely high value. I doubt there is another quality, reflex style, red dot sight with a similar size for this price. The red dot is bright enough for use outdoors. You don't need to worry about the dot getting washed out by the sun, as long as the sight is on the high brightness setting. The only thing I wish I could do is change to a smaller reticle.
This sight is not perfect however. At 15 feet, the parallax on this sight is enough to throw your shot off target several inches. Also, it is my preference for a smaller MOA dot. This one is, i guestimate, between 8 and 10 MOA. While the sight is easy enough to zero in, it could be easier. There is no "click" spoken of in the description of the item.
Overall, this is a great sight for the price. While there are a few areas where I'ld like to see improvement, these changes would likely add to the price tag.
Pros: High Value, Bright Dot, Parallax free at 25 yards and beyond, useful lens cover, and extra battery included
Cons: Dot is fairly large (precision), Parallax throws off the sight more the closer the target,
This review was written in the old system and had content requirements that are different than reviews written today.