He is also on here sometimes. He has made several barrels for me and they all work great. I don't remember his screen name on here but he should see this post and reply.
Every once in a while I get a few whisper barrels from him and sell them on gunbroker. All are 8" ss match barrels that are threaded 5/8x24. I can get other lengths and thread pitches from him, these are just the most common people have asked me for. The first AR barrel that Devin built was for me and hopefully I will get some more from in the next couple months.