I wasn't too enamored with the TA31 on my FAL, but I think this particular one also needs to back to Trijicon. I think Primary Arms makes something. While not fixed, the Elcan Spectre DR might be worth considering (it's just 1 and 4X).
I am messing around with the TA33 and once my eyes heal some more (I recently had PRK) I'm going to do a good bit of shooting with it and see how I like it for actual shooting, but while 3X it has enough magnification for use out to several hundred yards, it's very light, it's compact, I can mount it such as to clear the action for use of the carry handle or charger guide if desired, it has great eye relief, and I can still get partial cheek weld with it and kind still use the irons with it mounted (something like the TA31 sits way too high).