ASA 9mm AR barrel and A2 (Alcoah 'AF' marked) receiver. Was a 16" post ban. Shortened to 12" and flash hider added (1/2x28 threads, A1 flash hider), lightened slightly. Would make a good entry level 9mm SBR project. I never had issues with it. Looks good and runs good. Pics available upon request, please email direct. No bolt or charging handle. $200 shipped.
I prefer to keep her together.
Please note that the upper is factory. ASA milled the FA and brass deflector bosses off their 9mm uppers. Additionally, this upper is from my personal collection. It was recently replaced with a Colt 9mm receiver and Colt 10.3" barrel purchased from EE.