Yes I would say a fake is the concern, but I do not know the person nor am I discrediting.

Just look at this gunbroker add. Seller at least admits that the barrel is a Kreiger and is roll stamped to match the original. It is scary.

http://www.gunbroker.com/Auction/ViewItem.aspx?Item=473534200

Yes they can be faked. Greed can be the root of all evil.