Blue where are you getting them for $410? Their site shows $455 with a pinned gas block. That might twist my arm.
Noveske uses PacNor blanks, they are polygonal rifled and I never seem to need to clean mine. I like em.
Afterum, the barrel is the accuracy enhancement. A free float rail makes em easier to shoot accurately along with a good trigger. Don't buy into the billet crap or any other "enhancements" as long as the bolt locks up square, the barrel lets the ammo do all it will do.
