Shit, they're behind TOO!?
I had 'em make me a custom M4 barrel... Took a month or two at most as I recall. Easily the best M4 barrel ever.
Satern can make a good one too. IF you can manage to get 'em to actually make one. My Grendel barrel is phenomenal. A year went by, then two, same excuses all along... I guess I still have an order open with them --six years later, still no barrel or contact.
Lilja makes what I feel is the best button rifle barrel, but if I'm honest about it all, the Krieger is more accurate, lighter and because it uses a mid length gas tube, pretty soft on recoil too.
They're for sure my goto now.
But still Noveske hands down for SBR shit --1MOA is good enough there (usually pretty consistent) and they're reliable, boringly reliable.