I am looking for an original barrel for this gun. Where to find? THe gun was purchased by my dad in the 70's, and the original barrel had a what I'm guessing to be a poly choke welded on to it. When he bought the gun he had a replacement barrel put on, but it doesn't look to me like replacement barrel is even made for the gun. There is just something about It that looks goofy. I want an original barrel for it that is not reblued, I want the original pitina on it. Anybody know where I can find one?