There is Jeff Walley at Specialty Arms in LaVergne. He is really the best gunsmith I know and has all the stuff to do just about anything you want. Give him a call at (615)-793-9696. There is also a guy by the name of Bill Scarpino and you can get a hold of him through the ON Target shooting range in Murfreesboro. Their number is (615)-890-2960. I've never used him but talked to him the other day for about 45 minutes asking him about gunsmithing and he took the time to answer all my questions and was very polite andseemed very proffessional. I asked him about threading a barrell for me and said it would run $50.00. That is pretty fair IMHO. I'm interested in having him do it but Jeff is the one I've gone to for years and is a really good guy to boot. Hope this helps. Take care.