Radical Firearms AR-15 Stripped Upper Receiver - Forged

Manufactured by Radical Firearms
SKU: FU-S-Multi
Manufactured by Radical Firearms
15 Reviews

In Stock

Standard orders will ship out 1 business day if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.

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Start your next AR-15 build off right with a quality forged upper receiver. The Radical firearms stripped upper receiver is a great option whether you want to build an M4 style carbine or a completely custom AR-15 rifle. This Upper is forged from durable 7075 aircraft grade aluminum that is stronger than other materials commonly used in AR-15 receivers. It also has a tough type 3 hardcoat anodized finish that provides excellent wear and corrosion resistance, so you can count on this receiver lasting a long time. The picatinny top rail is great for mounting scopes or red dot sights depending on how you want to set up your rifle. This flat top upper also has M4 feed ramp cuts that increase reliability with many different types of ammunition. Stripped upper receivers are a great place to start when building your AR because you can pick and choose every component from the barrel and handguard to the bcg and charging handle. Just throw in a Mil-Spec upper parts kit and you’re ready to get started.

  • Mil-Spec flat top stripped upper receiver
  • Compatible with Mil-Spec lower receivers
  • Forged from 7075 aircraft grade aluminum
  • Type 3 hardcoat anodized finish
  • Picatinny top rail
  • M4 feed ramp cuts
  • Machined shell deflector and forward assist slot

Radical Firearms offers law enforcement grade hardware. Crafted with quality materials and covered by their lifetime warranty, Radical Firearms is an outstanding choice for any budget.
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BrandRadical Firearms
Feed RampsM4
FinishHardcoat Anodized
Forward AssistAccepts Standard Forward Assist
Port DoorAccepts Standard Port Cover
Receiver Material7075 Aluminum

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Great fit and finish

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Ordered 2 of these when on sale. No blemishes and they both fit up to my lowers perfect with no slack. Seems they went back to regular price right after I ordered so glad I got them when I did but wish I would’ve ordered more now!

Great Upper

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If you’re on a budget build this is your product for upper assemblies. Great finish.


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Nice upper both appearance and function. Upper parts kit went in without a hitch. Foundry mark indicates it was made by Cerro Forge.

Good Upper receiver

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I built this upper using the Luth AR Upper receiver parts kit. Everything fit as it should without issue. The barrel and M4 feedramps lined up as expected. The finish was good and matched up close to several lowers I tried it on. This upper also fit well with every lower I tried it on. Some were more tight or loose which is typical for AR's. I would use this upper for a build again.

Would buy it again.

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Everything went together great with a aero upper parts kit.