Ordered up the barrel for my AR10 pistol build yesterday. Columbia River Arms has a 30% off sale going on (through today) that I took advantage of. Took $81 off the price of the barrel.
12.5", 1x8.5" twist, black shot peened with threaded end (already have the muzzle device and handguard from DiamondHead).
I'm hoping it arrives faster than the listed 8-16 weeks since it's about as simple a barrel as they offer. I was going to go machined finish, but decided the black shot peened would be better. That way I won't need to do anything to color it if I didn't like the shine it could have. Plus, I didn't want to order up the high temp Cerakote at this point. Since it's air cure and I don't have a dedicated room to spray it, it could get crap on it.
Need to order more parts for this build. Or at least the ones I'm going to Cerakote so that I can get that done too.