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F-1 Firearms UDR-15-3G Billet Universal Upper Receiver

AR-15 Stripped Upper Receiver


The F-1 Firearms UDR-15 Universal Upper Receiver is the best of both worlds. The upper receiver is made with 7075-T6 aircraft quality domestic Aluminum ensuring quality and offers the signature F-1 Firearms 3G skeletonizing for reduced weight and aesthetics. This upper receiver is also universal which makes it compatible with any MIL-SPEC lower out there.


  • UDR-15-3G universal upper receiver
  • Manufactured from high grade 7075-T6 billet aluminum
  • Unnecessary surfaces milled out for lightest reliable configuration
  • Black - Type III Class 2 hard anodizing
  • Colors - Type II hard anodizing
  • F-1 Firearms 100% Product Guarantee
  • Weight 6.7oz
More Information
Product Type AR-15 Stripped Upper Receiver
Manufacturer F-1 Firearms
Option AR-15

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