
Availability: In Stock
Current Stock: Out of stock
The Sons of Liberty Gun Works Broadsword-89 upper receiver is a precision-engineered upper half designed for shooters who demand rock-solid lockup and minimal point-of-impact shift under aggressive field conditions. Chambered in 6mm Max with an 18-inch barrel and topped with a 16.75-inch M89 rail system and NOX muzzle device, this upper delivers the accuracy and durability you need for long-range hunting, precision rifle competition, or demanding range work. Built on the proven Broadsword platform, the -89 iteration takes handguard integration to the next level—purpose-designed for seamless M89/L89 handguard compatibility and engineered to eliminate the flex that can throw your zero.
What sets the Broadsword-89 apart is its reinforced construction. The upper receiver profile is stiffened throughout to lock down the barrel-to-optics interface, a critical detail for shooters running heavy loads, prone supports, or barricade positions. SOLGW's testing shows this design minimizes POI shift even under extreme bipod and barricade pressure—a real advantage when precision matters. The forward-shifted forward assist also gives you extra clearance for left-hand charging handle manipulation, a thoughtful detail that improves ergonomics without compromise.
The 6mm Max cartridge delivers flat trajectory and velocity in a modern, efficient package, making it a solid choice for mid-to-extended-range work. Paired with a precision SOLGW barrel and the rock-solid M89 rail system, this upper receiver gives you the foundation for a rifle that holds zero and performs when it counts. Whether you're building a long-range hunting rig or a match-grade precision platform, the Broadsword-89 handles both with authority.
| Product Type | Upper Receiver |
| Manufacturer | Sons of Liberty Gun Works |
| Model | Broadsword-89 |
| Chambering | 6mm Max |
| Barrel Length | 18 inches |
| Handguard System | M89 (16.75 inches) |
| Muzzle Device | NOX |
| Handguard Compatibility | M89/L89 |
The Broadsword-89 is designed with relief cuts that integrate seamlessly with M89 and L89 handguards, providing a stout, secure lockup with minimal flex.
Yes. The reinforced receiver design, precision barrel, and 6mm Max chambering make this upper well-suited for long-range hunting applications. The reduced POI shift under load is a significant advantage for field shooting.
This upper receiver comes with the 18-inch barrel, 16.75-inch M89 rail system, and NOX muzzle device as described. It is a complete upper half assembly.
The forward assist has been shifted forward compared to standard receivers to provide added clearance for left-handed manipulation of the charging handle, making it more ergonomic for southpaws.

SKU: 194199643 • Weight: 4.5oz





Availability: In Stock
Current Stock: Out of stock
The Sons of Liberty Gun Works Broadsword-89 upper receiver is a precision-engineered upper half designed for shooters who demand rock-solid lockup and minimal point-of-impact shift under aggressive field conditions. Chambered in 6mm Max with an 18-inch barrel and topped with a 16.75-inch M89 rail system and NOX muzzle device, this upper delivers the accuracy and durability you need for long-range hunting, precision rifle competition, or demanding range work. Built on the proven Broadsword platform, the -89 iteration takes handguard integration to the next level—purpose-designed for seamless M89/L89 handguard compatibility and engineered to eliminate the flex that can throw your zero.
What sets the Broadsword-89 apart is its reinforced construction. The upper receiver profile is stiffened throughout to lock down the barrel-to-optics interface, a critical detail for shooters running heavy loads, prone supports, or barricade positions. SOLGW's testing shows this design minimizes POI shift even under extreme bipod and barricade pressure—a real advantage when precision matters. The forward-shifted forward assist also gives you extra clearance for left-hand charging handle manipulation, a thoughtful detail that improves ergonomics without compromise.
The 6mm Max cartridge delivers flat trajectory and velocity in a modern, efficient package, making it a solid choice for mid-to-extended-range work. Paired with a precision SOLGW barrel and the rock-solid M89 rail system, this upper receiver gives you the foundation for a rifle that holds zero and performs when it counts. Whether you're building a long-range hunting rig or a match-grade precision platform, the Broadsword-89 handles both with authority.
| Product Type | Upper Receiver |
| Manufacturer | Sons of Liberty Gun Works |
| Model | Broadsword-89 |
| Chambering | 6mm Max |
| Barrel Length | 18 inches |
| Handguard System | M89 (16.75 inches) |
| Muzzle Device | NOX |
| Handguard Compatibility | M89/L89 |
The Broadsword-89 is designed with relief cuts that integrate seamlessly with M89 and L89 handguards, providing a stout, secure lockup with minimal flex.
Yes. The reinforced receiver design, precision barrel, and 6mm Max chambering make this upper well-suited for long-range hunting applications. The reduced POI shift under load is a significant advantage for field shooting.
This upper receiver comes with the 18-inch barrel, 16.75-inch M89 rail system, and NOX muzzle device as described. It is a complete upper half assembly.
The forward assist has been shifted forward compared to standard receivers to provide added clearance for left-handed manipulation of the charging handle, making it more ergonomic for southpaws.
SKU: 194199643 • Weight: 4.5oz
