Got mine together easy enough, will get some pics up shortly.
It was bindy as hell when I first got it together, even with grease, would jam up about half way through the cycling, carrier was rubbing on one spot inside the receiver but it was the bolt handle raceway that was the major culprit. Anyway some dry cycling sorted that out, bolt handle raceway is pretty much down to bare metal. It's smooth and tight now, no wobble anywhere. I'll have to tear it down again and clean all the worn off anodizing out before I go shooting. Little uncomfortable with that spring in the bolt, not sure I like the idea of something pushing the bolt open from lock, there is a little spring back when letting the charging handle fly home, not enough to unlock it, but I'd be more comfortable if it stayed closed tight. I don't want to have to double check every shot pushing the bolt forward that 1/8 inch every time. Maybe when the spring compresses a bit it won't be an issue.
Everything fit nice and tight in the lower, only thing a bit oversized was the barrel journal on the upper, the pin guide was a bit large, and every barrel I tried slid right in with no resistance as all. Most of my AR's required some force and a few even a little gentle tapping to seat the barrel in the upper. Not sure if this will affect accuracy until I get it out shooting. Barrel I have on it now is a 16" 1/8 Gov profile melonite PSA 5.56 but it's brand new, never got a chance to shoot it prior to the ban. I'll know more once I get my go to 20" barrel on it, I put a lot of rounds through it and I know how it shoots.
Overall it's a nice looking setup, but this was the least excited I've ever been about a new gun. Essentially it's just a required purchase in order to use my $1000's of parts sitting idle collecting dust which is the sad state of our gun laws in this country.