I was bamboozelled - Trijicon ACOG Mount RMR Adjustable Red Dot Sight w/ MOA Dot Reticle

This produce failed within two weeks. I mounted the sight on the slide of an m&p 9 and used it for carry optics competition. I sent the sight in for repair at my own cost and they installed update electroncs in it that were not prone to failure. What really irriated me is that this supposed reputable company knowingly sold me a product they knew would fail until it got sent in for upgrade. They wasted my time and money. If you buy one of these make sure you get the upgraded version. The same exact thing happened to my buddy that also bought one.