Product review (4 stars): Good sight, until it gets hot.
I like this little red dot, I do have a pretty big concern though. I mounted this on an Ultimak rail , on a M92. After firing the M92 and heating it up this loses zero. Good sight, but this one needs to be run on a receiver rail, or scope mount. Well built , just heats up and loses zero. If it is fired and stays cool, holds good.