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Questions & Answers
Will it work with samson Evo handguards? Expert Answer

The Samson Evolution Handguards should work fine with the Fortis Manufacturing Fortis Billet Upper Receiver.

by Hunter, Gear Expert, July 1, 2022
Will this fit 5.56 nato set up Expert Answer

Yes, this upper will work for that setup.

by Kurt Colbourne, Gear Expert, February 24, 2021
Customer Reviews
Helpful Positive Review
Fortis billet upper by Matt, Verified Owner, May 31, 2017
Great fit and finish. Installed easily and when the barrel was installed it was true. No spacers needed. Make sure you use a billet lower for best results. Tried it on a forged lower and needed an acuwedge to tighten up the fit.
1/2 found this helpful
Helpful Positive Review
Fortis Upper by Jazz, February 15, 2018
Very well made , light weight, and complete with dust cover , would recommend highly to anyone , this was placed on a new build I have just completed, also came with with a foward assist, and a Awsome price.
3/3 found this helpful
Helpful Negative Review
Loose Tolerances by The Ballistic Hipster, Verified Owner, December 18, 2020
Very well machined & finished, lightweight, aesthetically pleasing. So, why am I giving it 3 stars? The barrel extension to receiver fit is very loose. If you're from the school that finds a nice easy slip fit desirable, have at it, you'll love this....
Read More...
3/3 found this helpful
Most Recent Reviews
Fortis Upper Reciever by JRL, Verified Owner, November 25, 2025
well made, solid upper receiver with a billet aluminum gas to insert that holds the gas tube insert snug. Great looking upper and nice cerakote job!
Most Recent Reviews
Fortis stripped upper by Thomas Harris, Verified Owner, October 31, 2024
Great finish very high quality workmanship high price follows but you do get what you pay for haven't installed on an upper yet probably use it with 223 wylde barrel for a woodchuck gun .
Most Recent Reviews
Nice Fortis For this upper part for Ar.. by Falcon072, Verified Owner, July 22, 2023
Great fit and finish. Top quality and customer service. Get this if you want something nice and light, color and coating is also well made. Get it while it is still available. No Joke, I had to wait and wait for 2 years for this when it was out � of ...
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Color:
Black
Finish:
Matte
Fabric/Material:
Aircraft Grade 7075-T6 Aluminum
Caliber:
5.56x45mm NATO
Gun Make:
Universal
Gun Model:
M4
Condition:
New

Code: 2GN-UPR-FBURI-U-BILLET-M4

MPN: U-BILLET-M4

UPC: 810103344181

List: $199.95Save $10.00
$189.95

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Product Info for Fortis Manufacturing Fortis Billet Upper Receiver

The Fortis Manufacturing Fortis Billet Upper Receiver is a precision machined, one piece billet upper receiver made from aircraft grade 7075 T6 aluminum and Military Specification Type III hard coat anodized with an M4 feed ramp. The Fortis Manufacturing Fortis Billet Upper Receiver has engraved logos on both sides as well as the top. The Fortis Manufacturing Fortis Billet Upper Receiver w/ 1913 Picatinny Rail has a one piece billet design constructed of aircraft grade 7075 T6 aircraft grade aluminum and Military Specification Type III hard coat anodized with a Cerakote coating. The Fortis Manufacturing Fortis Billet Upper Receiver is a great upper for any gun builder who is looking to increase the function and performance of their rifle with a shaved ounces where they could without sacrificing strength or rigidity.image

Specifications for Fortis Manufacturing Fortis Billet Upper Receiver:

Manufacturer: Fortis Manufacturing
Color: Black
Finish: Matte
Fabric/Material: Aircraft Grade 7075-T6 Aluminum
Caliber: 5.56x45mm NATO
Gun Make: Universal
Gun Model: M4
Condition: New
Projectile Caliber: .223 Caliber
Attachment Type: Picatinny

Features of Fortis Manufacturing Fortis Billet Upper Receiver

  • One Piece Billet Design
  • Aircraft Grade 7075 T6 aluminum
  • Military Specification Type III Hard Coat Anodized
  • M4 feed ramp
  • Engraved logos on both sides as well as the top
  • 1913 picatinny rail flat top
  • Light weight at 6.7oz
  • Made in specialized factories.

Package Contents:

  • Fortis Manufacturing Fortis Billet Upper Receiver

Fortis Manufacturing Fortis Billet Upper Receiver Orderable Models

List of Orderable Models

  • Fortis Manufacturing Fortis Billet Upper Receiver, Black, U-BILLET-M4 , MPN: U-BILLET-M4 , UPC: 810103344181 , Code: 2GN-UPR-FBURI-U-BILLET-M4

Fortis Manufacturing Fortis Billet Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Fortis Manufacturing Fortis Billet Upper Receiver, Black, U-BILLET-M4 , MPN: U-BILLET-M4-EDEMO , Code: 2GN-UPR-FBURI-U-BILLET-M4-EDEMO-IN-B
  • DEMO, Fortis Manufacturing Fortis Billet Upper Receiver, Black, U-BILLET-M4 , MPN: U-BILLET-M4-DEMO , Code: 2GN-UPR-FBURI-U-BILLET-M4-DEMO
  • Open Box, Dealer Demo, Fortis Manufacturing Fortis Billet Upper Receiver, Black, U-BILLET-M4 , MPN: U-BILLET-M4-DMO , Code: 2GN-UPR-FBURI-U-BILLET-M4-DMO
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