This is a really nice magnifier. It's really crisp and has a good view.
I'd highly recommend it, especially for the price (compared to the other magnifiers).
-Flips to the side, like the description says.
-Super crisp vision.
-A good price for what it can do, compared to the other magnifiers.
-It's pretty much all metal. And it's a really good metal, too.
-Rubber cover for both sides, for when your not using it, and you don't want it to break.
-Short eye relief. Only works with some retractable stock positions.
-Sits an inch high above the rail. I'd suggest buying this first, and then buying a red dot with the risers that you'll need.