That barrel arrived today. It's fantastic as far as fit and finish. It fits my upper right on the edge of being too tight, but also tight enough to help contribute to accuracy. It took consistently the same amount of force the whole way in too, I did not mic it but I can tell it's perfectly cylindrical where it fits into the receiver. I realize a competent machinist should be able to hit a target but still it's great to see this level of work.
I had high hopes and I'm really impressed with it so far.
No range trip for a couple weeks which is a bummer. But I'll have groups to show.