What does SA&A stand for? Never heard of this brand of AR...
Surplus Ammo and Arms (they're located in Lakewood, WA), their lowers are made by Aero Precision, however.
I'd have preferred to buy local, but I live in Oregon and the only Oregon-based outfit is Noveske; and those tend to be outside of my price range.
"My momma, she done told me, there's heart and then there's hate
If one of 'em's inside of you, the other one, it aint."