Last month I bought this barrel for my AR10 build. I changed my mind, and now want a 20" barrel instead. If you have a new, unused Armalite AR10T 20" barrel and want to swap, I’m your man.
or if you want to buy it: AR-10 T Barrel Assembly, 24" Triple Lapped, Stainless Steel, Match Grade, RH 1:11.25. Comes with barrel nut and gas block. $549.00