I run Aimpoint T-2 red dots on most of my AR with Eotech G33 magnifier. I wish that I had known about the Sig Romeo 5 red dots back when I bought all of my T-2. There is absolutely nothing wrong with the Aimpoint T-2. It is it in opinion the best red dot in the market. For the best bang for you buck though the Sig Romeo 5 kills it. When you can buy 3 or 4 high quality Romeo 5 red dots for the price of just one Aimpoint T-2 it really gets hard to justify the added expense of the T-2.