This one here???
http://shop.si-defense.com/SI_Defense_AR_15_Forged_A3_Upper_Receiver_p/si ar-15-frg-a3.htm
Lowers were $50 as well but I think Arfcom locked on to it and they sold out.
I need this, I'll take it if its still available. PM sentI got a RRA A2 Stripped upper receiver 50bux located in Metairie..