MPN: UDR-15-3G-U1-BLK / UDR-15-3G-U2-BLK


  • Newly designed skeletonizing and scalloped Mil-Spec Picatinny Rail
  • Super light-weight design
  • Scalloped top Mil-Spec picatinny rail
  • Made in the U.S.A


  • Material: 7075 Billet Aluminum
  • Finish: Type III Class 2 Hard Coat Anodized
  • Weight:
    • Style 1: 6.63 oz.
    • Style 2: 7.09 oz.


  • AR-15


The F-1 Firearms UDR 15 Skeletonized Universal Upper Receiver offers the perfect combination of quality, lightweight construction, and aesthetics. As a universal receiver, the F-1 Upper is compatible with any Mil-Spec lower.

It's precision-machined from 7075-T6 aircraft-quality aluminum, giving it exceptional strength and durability. It also has a hard coat anodized finish, providing excellent resistance to wear and corrosion.

Its skeletonized design removes excess weight and material while giving it a unique look. This F-1 upper receiver also features a scalloped Picatinny rail for even greater weight reduction.

Your AR-15 will look and feel amazing when you add the F-1 Firearms UDR 15 Skeletonized Universal Upper Receiver.

About F-1 Firearms

F-1 Firearms is a leading firearm manufacturer based in Texas. They have in-house machining capabilities, allowing them to control critical tolerances for every component across all their platforms. As a result, their products offer the ultimate in performance, accuracy, and dependability. When you purchase an F-1 Firearms item, you'll get a product with a lightweight build and high-strength properties that's long-lasting and easy to use.

Buy the F-1 Firearms UDR 15 Skeletonized Universal Upper Receiver Online Today

Wing Tactical is a leading supplier of AR-15 parts and accessories. Our experienced team of shooters carefully selects all our products, and you can buy from us with confidence because we only stock items we would trust for ourselves.

Purchase your F-1 Upper online today and receive it promptly thanks to our next-day shipping option. If you have any questions, connect with us online.

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Reviews (3)

  • Upper receiver

    Posted by CM1MAGNUS on 24th Aug 2022

    This is perfect for my theme build, I asked tech support can this upper pass large caliber casings though and they didn’t think so… I still ordered it and measured it my self, the opening is wide enough to pass a .450 Bush Master case through… if I need to smooth out any areas I will once I test it..

  • Skeletonized upper

    Posted by Sam on 31st Jan 2020

    Well built with excellent quality! Wing Tactical's shipping is next level too!!

  • Upper Receiver

    Posted by Dustyn on 24th Dec 2019

    Great! Everything fitted as it should and especially made everything come together. Definitely would buy again.

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