Hello all!
I was hoping that someone (perhaps the owner) would be able to tell me which Barrel this is?
Thanks for your help.
Why not PM him? I am sure that he won’t bite you.
Saves the rest of us a PM, if it’s posted here for all to see. 
If I remember correctly it is a BCM SS barrel. He blended the comp and bead blasted the barrel and comp. He does good work.
Matt
Glockshooter is correct.
That is a 16" BCM SS410 midlength. I reprofiled it down to .650" behind the gas block under the rail, pinned a VLTOR stainless gas block on it and timed the Benny Hill Rolling Thunder brake to align without the use of indexing/peel or crush washers and bead blasted it. That brake no longer on the gun, currently is sporting an AAC 51 tooth Blackout Brake that I modified to shoot flatter.
Saw the current barrel setup yesterday. It looks good.