OA-9C Billet Upper Receiver


48 in stock


  • Made in USA
  • Removable Shell Deflector included
  • Blowback operation only, no gas tube port
  • No forward assist
  • No ejection port cover
  • Short Ejection Port for pistol and rimfire calibers such as 9mm, .45ACP, and .22LR
  • Will work with any AR-15 compatible lower
  • Will work with any AR-15 compatible barrel
  • Billet 7075 T6 Aluminum Alloy
  • Black hard coat anodized (MIL-A-8625 Type III Class 2)
  • 9.3 oz

48 in stock

SKU: OA-9C-UR-BLK Category:


The Obsidian Arms OA-9C Billet Upper Receiver is engineered to look as good as it performs. Machined from 7075 T6 Aluminum Billet for a stronger, better fitting, more unique looking receiver.

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