Arm or Ally AR15 XL Stripped Upper Receiver - FDE

SKU: AOA611320

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AOA AR15 XL Stripped Upper Receiver – FDE

Manufactured in the USA

The Arm or Ally XL Stripped Upper Receiver in FDE is forged from 7075-T6 aluminum and features an enlarged ejection port, the XL Upper Receiver is your best choice when you’re planning a 458 SOCOM / 50 BEO / 450 BUSHMASTER build to send big lead downrange.


  • Port door opening enlarged to enhance larger diameter brass ejection (.450 Bushmaster, .458 SOCOM, .50 Beowulf)
  • M4 Feedramps
  • Compatible with AR15 Lower receivers
  • Compatible with AR15 Port Doors and Forward Assists
  • .250 takedown pin holes


  • .458 SOCOM StrippedUpper Receiver in FDE Cerakote

What is the Arm or Ally Brand?

Arm or Ally branded products are manufactured in the same facilities and to the same standards as many popular, high-end brands. Our promise to you is a high-quality product at a more affordable price. 100% American made products, backed by the same defect-free warranty as every other product we offer.

Product Information

Made in USA


Part Type

Upper Receiver, Upper Receiver Parts




7075-T6 Aluminum

Coating Type



Leading U.S. Manufacturer




Standard AR15 components



Arm or Ally

Arm or Ally is a stocking dealer for all Aero Precision, Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, TriggerTech, HIPERFIRE and named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!

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