The Sons of Liberty Gun Works M4-89 Complete Upper is a robust equipment addition, constructed for precision and durability with a 223 Remington/556NATO, 11.5 inch Combat Barrel, QPQ Finish, and a black 10.5 M89 M-LOK Handguard. Featured with an A2 Flash Hider and backed by a Lifetime Warranty, this model is designed for hard use straight out of the box, promising quality, accuracy, and longevity. Please note that a BCG or Charging Handle is not included.
Specs
| Model No. | SOLGWM489UPPER-115-556 |
| Model | M4 |
| Manufacturer | Sons of Liberty Gun Works |
| Color | Black |
| Caliber | 223 Remington |
| Barrel Length | 11.5 |
