I have a brand new 6mm Dasher Criterion barrel set up for Remage fit. Will fit remington 700 action. Comes with trued barrel nut also. It is 26" varmint contour in 1:8 twist. Stainless steel. Brand new!!!! Just bought it for one of my rifles and changed directions before i even received it in the mail. I just received it friday. Never mounted or fired. My loss, your gain. $300 shipped! Barrel and nut! I could loan out my go guage or a peice of brass sized to the go guage length so you can headspace it. I will also loan you my barrel nut wrench to install the barrel. No use buying the wrench and go guage for just one barrel change. Swap it out and send it back.