Doubt that's a Noveske at that price. Though they do carry Noveske. I use the shit out of those for SBR's, there ain't a better short barrel maker IMO. Good for 1MOA or better almost always. I guess that's why they cost $400. FWIW, I think their chrome lined barrels that were hammer forged were actually SAW blanks they cut into AR barrels, the mountain bbl. or whatever. Still want one.
FN makes good milspec shit. Period. If it's an FN, that's not bad and makes sense.
I'd call and ask first though. There's a barrel maker out here I think that they use for most of their stuff. They aren't bad, I just don't know the name. They get the blanks and cut 'em from there. $150 kinda scares me for a barrel, it's the one part that makes an AR sing. If you need rack grade rifles and plan on building 'em, may be good for that.
They're finished on the gas block so the milspec babies won't cry a river.