New Build, tell me what you think.

[Hawkeye]

The M2 is night vision compatable. The ML 2 is not. Approx 10,000 hrs battery life on them both and are both 4 moa dots.
The M3 is night vision compatable. The ML 3 is not. Approx. 50,000 hrs battery life on them, and are available with a 2moa or 4 moa dot.

(I believe those are the correct hrs on the battery life)

[Recoil-felt]

The M2 is night vision compatable. The ML 2 is not. Approx 10,000 hrs battery life on them both and are both 4 moa dots.
The M3 is night vision compatable. The ML 3 is not. Approx. 50,000 hrs battery life on them, and are available with a 2moa or 4 moa dot.

(I believe those are the correct hrs on the battery life)

Price-wise you can find some good deals on M2's, 10000 hours is approx 416 days, I don't know if I can shoot for that long as it is
As far as the MOA, 4 MOA is good for short range, run and gun kinda stuff, which is the purpose of my M4. Home defense as well (hand loaded 70gr soft nose in my 2 standby mags).
My middy is going to be for more precision shooting, at least that is my plan.
I eventually want to try a three gun event, but I will need to build a decent shotgun for that. Actually that is my next purchase. Going to need some advice on that matter soon. I would like an M3 or M4. Possibly a SPAS-12 or LAW-12 would be nice too.

[az_gun_nut]

Sounds like a good build, my only suggestion would be to go with an H2 buffer versus an H buffer. I'm running an H2 in my Colt M4 and it makes in much easier to get back on target for follow up shots quicker.

Get an extended battery cap for your M2 Aimpoint and you'll double your battery life. Unless you're planning to go into combat I personally can't justify the extra expense of the M3.

I've got one on mine and bought it from this same guy. http://www.gunbroker.com/Auction/Vie...?Item=64836122