Oh how happy SAI M1A owners would be if they offered Criterion chrome-lined barrels as an option! Not that there's anything wrong with their air-gauged stainless barrels, but I've read a lot of comments and questions from people asking if SAI M1As come with chrome-lined barrels. Unfortunately they do not...I know that LRB and Jon Wolfe build rifles with Criterion barrels, and I'm guessing that most of the other well-known M14 gunsmiths use/offer them in their builds as well.Criterion is what I thought on the manufacturer. Looks like Jan 2010 born date? Who is using these barrels, SAI? I have one that came with a kit I bought a while back and its just been laying around and I forgot all I knew about it.