Sons of Liberty Gun Works Broadsword Upper: 14.5" 5.56 with Pinned Brake
The Sons of Liberty Gun Works Broadsword Upper (U-BS-L89-556-145-PB) is a factory-assembled, high-performance complete upper receiver designed for builders who want a compact yet legally compliant AR-15 platform. This model features a 14.5-inch 5.56 NATO barrel paired with the premium L89 M-LOK handguard and a muzzle brake that is pinned and welded to achieve an overall length of 16 inches or greater. This configuration allows the upper to be installed on a standard AR-15 lower receiver without requiring additional paperwork or tax stamps associated with short-barreled rifles.
Sons of Liberty Gun Works is widely respected for producing some of the most reliable and precisely machined AR-15 components available. The Broadsword Upper series combines SOLGW’s high-quality L89 handguard with a precision 14.5-inch barrel and a pinned brake, delivering a balanced, durable, and ready-to-use upper. The pinned brake configuration is a popular choice among those who want the maneuverability of a 14.5-inch barrel while maintaining full legal compliance as a standard rifle.
Key Features of the Sons of Liberty Gun Works Broadsword Upper PB
14.5-Inch 5.56 NATO Barrel
High-quality 14.5-inch barrel chambered in 5.56 NATO for excellent velocity and handling characteristics.
L89 M-LOK Handguard
Premium L89 series M-LOK handguard offering lightweight strength and versatile accessory mounting options.
Pinned and Welded Brake
Muzzle brake is permanently pinned and welded to achieve a legal overall length of 16 inches or greater.
Complete Factory Assembly
Fully assembled and headspaced upper ready for immediate installation on any standard AR-15 lower receiver.
Why Choose the Sons of Liberty Gun Works Broadsword Upper with Pinned Brake
The Sons of Liberty Gun Works Broadsword Upper (U-BS-L89-556-145-PB) is an excellent choice for builders who want the compact size and balance of a 14.5-inch barrel without the legal requirements of a short-barreled rifle. By pinning and welding the muzzle brake, SOLGW creates a legal rifle configuration that offers improved maneuverability compared to a standard 16-inch barrel while remaining fully compliant with federal regulations.
The L89 handguard provides ample mounting space for lights, grips, and other accessories while maintaining a relatively lightweight profile. This Broadsword Upper is particularly well-suited for those building duty rifles, home defense carbines, or competition firearms where a shorter overall length is desired without sacrificing legality. Because it comes fully assembled and headspaced from the factory, builders can be confident in the quality and reliability of the finished product.
Additional benefits include:
- Premium L89 M-LOK handguard for strength and modularity
- 14.5-inch 5.56 NATO barrel for optimal balance and handling
- Pinned and welded muzzle brake for legal compliance
- Factory headspaced and assembled for reliability
- Compatible with all standard AR-15 lower receivers
- Backed by Sons of Liberty Gun Works’ reputation for quality
- Ideal for duty, competition, and general-purpose builds
Technical Specifications – Sons of Liberty Gun Works Broadsword Upper PB
| Specification | Details |
|---|
| Brand | Sons of Liberty Gun Works |
| Product Line | Broadsword Series |
| Model Number | U-BS-L89-556-145-PB |
| UPC | 657628672845 |
| Caliber | 5.56 NATO / .223 Remington |
| Barrel Length | 14.5 Inches |
| Handguard | L89 M-LOK |
| Muzzle Device | Pinned and Welded Muzzle Brake |
| Overall Length | 16+ Inches (Legal Rifle Configuration) |
| Configuration | Complete Upper Receiver |
| Compatibility | Standard AR-15 Lower Receivers |
| Features | Pinned Brake, Precision Assembled, L89 Handguard |
Ideal Applications for the Sons of Liberty Gun Works Broadsword Upper PB
The Sons of Liberty Gun Works Broadsword Upper (U-BS-L89-556-145-PB) is an excellent choice for a variety of AR-15 builds where a compact yet legally compliant configuration is desired. The pinned brake setup allows users to enjoy the handling benefits of a 14.5-inch barrel while maintaining full compliance as a standard rifle. This makes it particularly popular for duty rifles, home defense carbines, and competition builds where maneuverability is important.
This complete upper is favored by professional users, competitive shooters, and serious hobbyists who want a high-quality, ready-to-install upper without the need to source and assemble individual components. The L89 handguard provides ample mounting space for accessories while keeping the overall weight manageable. Whether you are building a tactical carbine or a versatile all-purpose rifle, the Broadsword Upper with the pinned brake delivers the performance and reliability that Sons of Liberty Gun Works is known for.
This product is especially popular among duty rifle builders, competition shooters, and AR-15 enthusiasts looking for a premium 14.5" 5.56 upper with the L89 handguard and a pinned muzzle brake for legal compliance.
Order the Sons of Liberty Gun Works Broadsword Upper Today
Upgrade your AR-15 build with the Sons of Liberty Gun Works Broadsword Upper (U-BS-L89-556-145-PB). This premium complete upper features a 14.5-inch 5.56 barrel, L89 M-LOK handguard, and a pinned and welded muzzle brake for a legal and compact configuration. Order your Sons of Liberty Gun Works Broadsword Upper today and experience the quality and performance that SOLGW is known for.
Sons of Liberty Gun Works Broadsword Upper | Model U-BS-L89-556-145-PB | UPC 657628672845 – 14.5" 5.56. L89 Handguard. Pinned Brake.
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