Received my Thunder Tactical upper just now. I would actually consider it flawless. : r/RetroAR
A2 Upper in stock at Thunder Tactical $80 : r/RetroAR
AR-15 Upper Receivers - From Thunder Tactical
New Products Birchwood Casey
Highflyer Arms
World of Targets® 8 Inch Single Hole AR500 Gong - Birchwood Casey
Promotions - AT3 Tactical
Update on Birchwood Casey aluminum black on thunder tactical a2 upper : r/ RetroAR
Highflyer Arms
Before and after two rds of Aluminum Black : r/ar15