The Sons of Liberty Gun Works Swamp Fox UL is a complete upper receiver group chambered in 5.56 NATO with a 14.7-inch barrel.
- Caliber: 5.56 NATO
- Type: Complete Upper Receiver Group
- Compatible Lower: Mil-Spec AR-15
- Barrel Length: 14.7 inches
- Material: Forged 7075-T6 Aluminum
- Finish: Anodized
- Includes: Upper Receiver, Barrel, Handguard, BCG, Charging Handle
- Installation: Requires Mil-Spec AR-15 Lower Receiver
