Product Description
The Sons of Liberty Gun Works (SOLGW) Broadsword/L89 Upper Receiver Group (URG) is a precision-engineered, high-performance complete upper assembly designed for shooters who demand maximum structural rigidity and match-grade accuracy. Built around the Broadsword Billet Upper Receiver, this assembly features increased wall thickness and an expanded surface area at the barrel nut interface that dramatically reduces handguard and barrel flex. The innovative Drivelock system integrates an extended barrel nut, tensioning crossbolts, anti-rotation tabs, and a stainless steel center index dowel to create one of the most rigid AR-15 upper platforms on the market, capable of turning almost any lower receiver into a match-grade rifle. Chambered in .223 Wylde, the 14.5-inch precision barrel accommodates both .223 Remington and 5.56 NATO ammunition safely and accurately. The SOLGW NOX-9 Flash Hider is permanently pinned and welded (P&W), achieving a compliant 16-inch overall barrel length without NFA registration, while also retaining compatibility with KeyMo suppressors. The 13.75-inch L89 Drivelock handguard rounds out the build with a titanium barrel nut and a three-point locking system for rock-solid accessory and optic retention. Note: Does not include a bolt carrier group (BCG) or charging handle.
Product Highlights
- Broadsword Billet Upper Receiver - Increased wall thickness and surface area at the barrel nut interface significantly reduce handguard and barrel flex for improved precision
- 14.5" .223 Wylde Precision Barrel - Delivers match-grade accuracy with dual compatibility for .223 Remington and 5.56 NATO ammunition; threaded 5/8x24
- Pinned and Welded NOX-9 Flash Hider - Permanently affixed to achieve a legal 16" overall barrel length without NFA registration; fully compatible with KeyMo suppressor mounts
- 13.75" L89 Drivelock Handguard - Features a titanium barrel nut and three-point locking system for superior rigidity and reliable accessory retention
- Drivelock Tensioning System - Anti-rotation tabs, stainless steel center index dowel, and extended barrel nut work in concert to provide an unmatched rigid interface on a traditional two-piece AR-15 platform
Specs
- Brand: Sons of Liberty Gun Works (SOLGW)
- MPN: U-BS-L89-556-145-NOX
- UPC: 657628672821
- Caliber / Chamber: .223 Wylde (compatible with .223 Remington and 5.56 NATO)
- Barrel Length: 14.5 inches
- Overall Barrel Length (Pinned and Welded): 16 inches
- Barrel Thread Pitch: 5/8x24
- Handguard: 13.75" L89 Drivelock Rail
- Handguard Barrel Nut Material: Titanium
- Flash Hider: NOX-9 (Permanently Pinned and Welded), KeyMo Compatible
- Upper Receiver Type: Broadsword Billet
- Platform Compatibility: AR-15
- Finish: Matte Black
- Includes BCG / Charging Handle: No
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