Great barrel but poor qc - Shaw AR-10 308 Winchester Threaded Barrel

Looking at the barrel on the outside it has a high quality fit and finish. Beautiful barrel nice sharp threads and deep gas block dimple. Shot pretty good. I got 2.5 moa with m80 ball and 1.25 with M118LR. it does not handle heat well though. Groups open up predictably when it warms up. The only problem was the gas port. The gas port had burs in it and burs hanging off the inside surface in the barrel. The port is Also under size. Will not run reliably out of the box. The port is below minimum spec and needs to be reamed out to max spec in order to properly tune with an AGB. TLDR; Its a decent barrel but I wouldn't buy again. Next time I'll buy criterion.