Fortis Billet M4 Upper Stripped for AR15 223 Rem, 556 NATO - UBilletM4
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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.
Specifications
Fortis Billet M4 Upper Stripped for AR15 223 Rem, 556 NATO - UBilletM4
Frequently Built With
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
Fortis 10" M-Lok Night Rail System 5.56 Free Float, Black - NTR-10-ML
Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11
Lower Receiver
Daniel Defense Mfr Xl Free Float Ar-15 Handguard - M-Lok - 9"
HandguardBuild Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with 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 | 2 | |
| Faxon Firearms 5.56 Gunner Lightweight 9310 Bolt Carrier Group - Nitride - TiN PVD | 2 | |
| Fortis 10" M-Lok Night Rail System 5.56 Free Float, Black - NTR-10-ML | 1 | |
| Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11 | Lower Receiver | 1 |
| Daniel Defense Mfr Xl Free Float Ar-15 Handguard - M-Lok - 9" | Handguard | 1 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| .223 Wylde | 100% |
| Gas System | Percentage |
|---|---|
| Pistol | 100% |
Builds Featuring This Part
See all 3 →Builds in the community that include the Fortis Billet M4 Upper Stripped for AR15 223 Rem, 556 NATO - UBilletM4
| Build | Parts | Total |
|---|---|---|
 | 14 | $2121.59 |
 | 22 | $1972.12 |
 | 16 | $1657.96 |
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