I believe my Daniel Defense M4V1 is a top tier AR and I'd rank it among the best.
Other top shelf brands are LMT, Noveske, LWRC, maybe LaRue.
I'd include HK but I have heard murmurs about piston tilt being a concern in the M416/MR556 platform. I might be off base.
Edit: Oh, and Colt of course
Last edited by LockedBreech; October 12, 2012 at 01:42 PM.