I'll have to agree with SA85 here. What's a cleaning kit? Why should a grunt have to spend an hour a day cleaning his Stoner miracle gun when he can have a gun that will go bang cheaper in the AR-18, Galil, AK-47, HK36, Valmet, Stoner 63, etc? These guns don't need the same level of care to go bang either. Me, I'd carry the Valmet or Galil into battle. Heck, I'd carry an FAL almost anywhere.
The problem the US Military has gotten ourselves into is that we are relying on an inherintly unreliable weapon. Fire 1000 rounds over the course of a realistic field exercise with any weapon and you get a better idea of how reliable that weapon is. To keep the Black Rifle going requires TLC. Don't flame me with your "Yeah, but my M-16 never... blah, blah, blah." You are not Joe Sixpack Grunt or you wouldn't be on this board. For the Rank-and-File Rocket Scientist who can't pass the ASVAB, the M-16 is a hopelessly complex system that requires more cleaning than Michael Jackson's Toilet.
So there. Now after all that, I'll say I own both an AR-15 and AR-10 and love them. I do know how to clean them and am not planning on going out to the field any time soon.