Well my point is the non mil-spec buffer tube, the 1 in 8 twist barrel, non f-marked sights and other things that are not the usual in the upper tier AR's. by no means am I a fan of the Colt, but I would take Colt's crappy customer service over the Windham AR that cuts corners (buffer tube..etc)
And see, that's my point. The commercial buffer tube, all other things equal, is superior to the milspec buffer tube. Once you settle on the stock, it is a non-issue. The 1:8 twist is superior to the milspec 1:7 twist unless you are regularly going to be shooting 77 grain and heavier bullets, which, BTW, have to be pushed way back into the case in order to fit into the magazine, therefore, most people don't. Salt-bath nitrided bores are superior to chrome lined bores in any number of ways.
As has been said before - milspec does not necessarily mean superior; it just means milspec.
But there's more, why would anyone go with Windham which cuts the same corners that the old (and new) Bushmaster did (does) when you can get a milspec PSA for under $800? It just makes no sense to pay the same or more for a commercial grade AR!
And another fallacy from internet gun experts is that "different" or "not milspec" is equivalent to cutting corners. From a logical perspective, this makes absolutely no sense. If you had said, "...not tested to <insert standard here>...", I can agree. But personally, I think the technology in gun building has progressed since the military standards for the M16/M4 were written.
Not meeting mil-spec is not the same as cutting corners. The mil-spec is just a list of specifications, using a different specification does not necessarily make it better or worse does it?
The Windham AR is significantly better than the old Bushmaster AR, better barrels that are 4150 Chrome Moly Vanadium Steel which are chrome lined, better bolts made from C158 and MP/HP tested. The finish is MIL-A-8625, Type III, Class2, hard coat anodize, the same finish most all manufacturers use today. I don't see the commercial RE as a big deal, although I would prefer a true mil-spec RE, not all manufacturers use the true mil-spec, they use mil-spec diameter, not a forged 7075 RE.
Lately I have read a lot more quality control problems about Colt than I have about Windham. Colt has shipped unstaked keys, poorly machined bolts, terrible feed ramps. Even the dancing pony farts sometimes.