Stock CCM barrels are just as good or better than anything else I have shot. They made CF barrels in the past, if you look you should be able to find one used. I see them quite often, but haven't been hitting the BST's like I used to, I am trying to curve my spending compulsion. If you really want a CF barrel to use w/ the CCM sizers, I believe Stiffi Switch barrels work with them, but it may be easier to find a CCM cf barrel over one of them. The barrel market is so heavily saturated it is hard to get into that market. I think even Stiffi was on its way out, they may have sold to someone else, and they were one of the biggest names in the barrel industry.