Sons of Liberty Gun Works is a manufacturer of quality firearms and parts, perfect for your next build, next competition, or next line of defense. Their small parts fit most mil-spec firearms. These uppers are built with L89 7-sided rails, forged uppers, and Liberty Fighting Barrels. There are multiple options of lengths and muzzle devices.
Features :
Features :
- "12.5" 5.56 NATO Barrel"
- "11.75" L89 Handguard"
- A2 Flash Hider
- 7-Sided M-LOK Slots
- Integral QD's at Barrel Nut on Both Sides
- Drivelock Barrel Nut System
| Restricted State5 | WA |
| Subcategory | Upper Receivers |
| Color | Black |
| Manufacturer Part # | U-M4L89-556-125-A2 |
| Restricted State3 | IL |
| Type | Upper |
| Restricted State4 | NJ |
| Caliber | 556NATO |
| Fit | AR-15 |
| Barrel Length | 12.5" |
| Finish | Matte |
| Model | M4-L89 Upper Receiver Group |
| Type of Barrel | Threaded |
| Restricted State1 | CA |
| Restricted State2 | CT |
| Case Weight | 945.00 |
| Department Name | SBR Barrels & Upper Receivers |
| Coming Soon | Y |
| Allocated | N |
| Closeout | N |
| Dropshippable | N |
| Ground Only | N |
| NFA | N |
| Case Height | 0.00 |
| Talo Exclusive | N |
| Case Length | 0.00 |
| Items Per Case | 0 |
| Case Width | 0.00 |
| LeResale Only | N |
| Items Per Unit | 0 |
| UoM | EA |
| Exlusive | N |
| New Item | Y |
| DropShip Block | Y |
