I went to Acme’s site. That upper would be a good deal if they can build you one. It looks like they start building when the order comes in. I’d call them first and ask if they have the components on hand before I ordered.I see ad's such as the below. Then I see the highly rated complete upper as I posted above from Acme Machine for around $400. Am I going to be correct in assuming you're going to get a better deal on a completed upper as opposed to piece by piece? Is there more of an advantage other than maybe getting exactly what you want, but at the higher cost?
Up for sale is a nearly-new (60 factory rounds fired) Wilson Combat 18” 6.5 Grendel Stainless, fluted, recon tactical contour, 1-8 twist AR15 barrel. Muzzle threads are 5/8-24.
$275 shipped OBO