Here's a link to an E.R. Shaw 16.5" threaded barrel but not fluted. It's sold out at the moment but he usually gets them back in stock fairly quick. Also, you can look at other makes and free shipping on almost everything!
http://www.gunkings.com/index.php?ma...roducts_id=713

I ran an E.R Shaw 18" bull barrel for a couple hundred rounds before I sold the rifle and it seemed decent for the money...I would buy another in the future.