The Fortis Manufacturing, Inc. Billet M4 Upper is a stripped, lightweight and durable piece designed for AR15 rifles. Machined from billet 7075 T6 aluminum, this upper enhances function and performance without compromising on rigidity, strength, or aesthetics, in a sleek black color.
Specs
| Model No. | FORTU-BILLET-M4 |
| Manufacturer | Fortis Manufacturing, Inc. |
| Color | Black |
| Caliber | 223 Remington |
