Bear Creek makes some good stuff and some not so good stuff. I have sent back 2 barrels that wouldn't shoot decent groups. They did replace them with better barrels. I bought a Creedmoor upper that had an AR-15 rifle gas tube on place of a 308gas tube. The gas block was also hitting the inside of the rail and accuracy suffered. I replaced the barrel w/a Wilson barrel and gas tube and now that gun shoots well. I took the heavy barrel and put it in another upper w/the proper gas tube and it is doing ok so far. I have also purchased complete uppers that ran and shot just fine. I will keep buying from them because of price but I expect a problem every now and then. They do fix the problems if you give them a chance. BTW the heavy barrel Creedmoor upper was only $339.00 so the rail, BCG, and upper were worth that without counting the barrel.
I am considering one of their 50 Beowulf pistol upper to go with my rifle.