Works great with one caveat - Wilson Combat TRBCANB308 Bolt Carrier Assembly 308 DPMS AR Compatible Steel Nic

It works great but there is one issue, it does not hold oil/lubricant well. I did not know this before purchasing and I guess this is the issue with all BCG's coated with Nickel Boron. I do prefer phosphate for the bcg. This is in a bench rest rifle anyhow so probably not that big of a deal but I wouldnt use a bcg coated with NiB for a home defense or field rifle.