Christensen is the only people I have seen people deal with. I myself have not had a barrel turned down and wrapped. But I know people that have and I was impressed. I was very sceptical at first about the heat transfer, but seein was believin. If you got a fine gun that shoots well but heavy, has good throat good rifling, I believe they will turn it down and wrap it. Same as the old gun but took off some lbs.