If you want a cheap red dot for a small caliber rifle then this will work for you. My first problem with this sight was when I first opened the box. It was supposed to come with a Allen wrench for sighting in and one for the sight lock, but mine didn't come with the locking wrench so I had to go buy one. Second problem was that when zeroing in the adjustment screws were to smooth, so I couldn't hear or feel the click. So I had to just guess how far to turn it. Third problem is that the sight was not bright enough. In full day light I could barely see the reticule. And the forth and final problem was that THE LENS FELL OUT WHILE SHOOTING! I was shooting my .223 and the lens just fell out. Long story short is DON'T BUY THIS SIGHT.
Pros: cheap.
Cons: Pretty much everything exept price and features.
This review was written in the old system and had content requirements that are different than reviews written today.