What about the Leupold Mk4 C/QT....They are 1-3 power variable (illuminated reticle) and tough as nails. Just throwing that out there.
Not on the KevinB approved list (sorry, I can't remember why), but I am currently trying one out on one of my AR15's. So far, I am liking it very much, but bear in mind that my use is sporting only.
IIRC, KevinB did have some nice things to say about one of the lower powered Leupold MRT scopes, so you may want to look in that direction as well.
My impressions so far:
1. It will likely slow me down slightly in CQB stages, but it will be very helpful in picking off smaller targets at 40 yards distance or greater.
2. Eye relief is a bit of an issue. I'd prefer more than what this sight provides.
3. Clarity of sight is very good. Reticle is similar to EOTech (dot within a circle), but not quite as easy to pick up as the bright red reticle of the EO. OTOH, there is a standard black reticle for use in bright light or should your batteries fail. At this point I'd likely only use the lit reticle in lower light conditions anyway.
4. The change from 1x to 3x is easy enough, if somewhat stiff. A toggle, button or switch might have been nicer, but the twist up/down system it has won't get accidentally tripped.
5. Due to the eye relief issue, the temptation will be to mount the sight further back on the receiver. This will interfere somewhat with the use of the cocking handle on an AR15. I solved the problem by mounting the sight on an AR which has a built in 1" raised rail on the upper. The same effect could be achieved by mounting a detachable riser on your upper.
6. I can now shoot bug sized groups with my AR15 at 50 yards. I haven't tried it out at 100 yards yet.
Overall, I'm liking it so far, but there are some shortcomings which may require sorting out. I'll know better when I shoot some CQB stages with it.