Black Friday Sale 2018 just started on Rainier Arms!
Click here for more info.

Fortis Billet Upper Receiver

In stock
Only 5 left

Fortis Billet Upper Receiver -Stripped


The Fortis Billet Upper is a precision piece, machined from Billet 7075 T6 aluminum.  Like our other products, we designed this upper with function as well as form in mind.  We shaved off the ounces where we could without sacrificing rigidity or strength.  The end result is increased function and performance with the design aesthetics that we're known for.  See for yourself and you'll see and feel the difference with our products.


  • One Piece Billet Design

  • Aircraft Grade 7075 T6 aluminum

  • Military Specification Type III Hard Coat Anodized

  • Engraved logos on both sides as well as the top

  • 1913 picatinny rail flat top

  • Light weight at 6.7oz!

  • Made in the USA!

More Information
SKU U-Billet-M4
Manufacturer Fortis MFG
Finish No
Barrel Length No
Caliber No
Configuration No
Option AR15
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No