I do not typically use Aimpoints and when I have, they have been on single rifles. Its always bugged me the differences between the T-1 and T-2, considering the T-1 is less expensive but has the same 2 MOA dot (and an option for the 4 MOA). As such, I would originally have opted for the T-1.
Jonathan Owen, of SHWAT (Special Hog Weapons and Tactics) wrote for Cheaper Than Dirt’s Chronicle took the time to put the two side-by-side and noted the subtle differences. In short, its worth it to splurge the extra $60 extra for the T-2.