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Fortis Manufacturing
Overview
The Fortis Billet M4 Upper Stripped receiver is designed for the AR-15 platform and is crafted from billet aluminum, providing a robust and precise foundation for your build. This upper is chambered in .223 Wylde, allowing for optimal versatility between .223 Remington and 5.56 NATO cartridges. It’s commonly used in builds that feature a mid-length gas system, making it a solid choice for those looking to balance performance and reliability in their rifle setup.
Based on build data

Fortis Manufacturing License Gen 2 AR-15 Stripped Lower Receiver Black

Strike Industries Collar Adjustable Gas Block

Faxon Firearms 5.56 Gunner Lightweight 9310 Bolt Carrier Group - Nitride - TiN PVD

Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length

Yankee Hill Machine Co., Inc. Ar-15 Gas Tube Black Rifle

PRS® GEN3 Precision-Adjustable Stock
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Fortis Manufacturing License Gen 2 AR-15 Stripped Lower Receiver Black | 4 | |
| Strike Industries Collar Adjustable Gas Block | 3 | |
| Faxon Firearms 5.56 Gunner Lightweight 9310 Bolt Carrier Group - Nitride - TiN PVD | 2 | |
| Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length | 2 | |
| Yankee Hill Machine Co., Inc. Ar-15 Gas Tube Black Rifle | 1 | |
| PRS® GEN3 Precision-Adjustable Stock | 1 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| .223 Wylde | 100% |
| Gas System | Percentage |
|---|---|
| Pistol | 100% |
Builds in the community that include the Fortis Billet M4 Upper Stripped for AR15 223 Rem, 556 NATO - UBilletM4
| Build | Parts | Total |
|---|---|---|
![]() | 14 | $2096.60 |
![]() | 22 | $1987.18 |
![]() | 16 | $1614.22 |
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