I liked what I was seeing in the 6 ARC, so I bought a complete Aero Precision 6 ARC upper from Brownells last year. It didn't shoot to my expectations, so I returned it and got a 2nd one. It did shoot better and I killed a few coyotes with it, then sold it, and decided to build a better upper around a Shilen/Ranier Arms barrel.
This one is a f'ing hammer, 1/2 MOA with 87 Bergers at 3000.
It has a niche, albeit a small one, but it's not a marketing ploy......