Sons of Liberty Gun Works is committed to producing firearms with uncompromising quality, ensuring every component meets or exceeds Mil-Spec standards. With a dedication to reliability and performance, they build firearms that are ready for hard use straight out of the box. At the core of every Combat Grade weapon is a precision-engineered barrel, designed for exceptional accuracy and long-term durability. Each upper is meticulously tuned with the correct gas system length and premium buffer system components to ensure smooth operation and superior handling. These principles come together in the SOLGW Swampfox Complete Upper, featuring a 14.7 inches 5.56x45mm barrel paired with a NOX muzzle device and the rugged M76 Handguard. Backed by a rock-solid Lifetime Warranty, Sons of Liberty Gun Works stands behind their craftsmanship, delivering a product built to perform. Bolt carrier group and charging handle are not included.

The 5.56 x 45mm/.223 Remington is compatible with various firearms and offers consistent performance
The 14.7 inches combat barrel is designed for rugged, reliable performance
The 14 inches M76 handguard provides optimal handling and comfort
NOX flash hider, designed to minimize muzzle flash and enhance concealment during firing

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Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Local Law Compliance

Certain firearm parts and accessories, including AR-style upper receivers, are subject to complex and frequently changing federal, state, and local laws and regulations. While an upper receiver may be lawfully sold and shipped as a component, the legality of possessing, assembling, configuring, or using an upper receiver in certain states (e.g., California, Washington State) and localities depends on how it is assembled, combined with other components, and ultimately used. You are solely responsible for ensuring that any assembly, configuration, possession, or use complies with all federal, state, and local laws, including any so-called “assault weapon” bans and short-barreled rifle restrictions. We do not provide legal advice and are not responsible for unlawful configurations or uses.