Bought this chrome-lined Criterion barrel from LRB Arms brand new in March 2005 to be a replacement barrel for my M1A, but I've decided to use a match barrel instead. Criterion is a subsidiary of Krieger barrels, so these are topnotch.
This is the M1A/M14 standard-weight, standard-length chrome-lined 4-groove barrel. It is unused, never even mounted on a receiver. It has sat in my closet with the muzzle end wrapped in bubblewrap to protect the crown.
These sell new for $209 +$10shipping. I'll sell it for $190, including shipping. Email me at blakablakablaka at yahoo dot com.