Very nice bright green dot BEFORE I fired a mag from my AR. The problem is now the is a bright green dot, with a lot of bright tiny dot all around it.  Looks like a blast of green bird shot with a slug hole in the center.  Sight attached to a free float rail, mounted very solid.  If used on a pistol, it would be fine.
Pros: Affordable, lightweight, bright
Cons: not durable on rifle.
                    
This review was written in the old system and had content requirements that are different than reviews written today.