PSA has their Gen3 PA10 with 20'' 308 416R stainless steel barrel, detent click adjustable gas block, 15'' MLOK rail, Toolcraft nitrided BCG, Magpul stock, and NiB EPT trigger for $819 shipped here: https://flyingrich.com/h
This build was sponsored by IG:@invaderZip_ & IG:ZavairFirearms AKA http://22mods4all.com
Here is the lower to complete your AR-10!
PSA BLEM PA-10 Gen 3 Stripped Lower Receiver | Palmetto State Armory https://flyingrich.com/13