Sons of Liberty Gun Works M4-L89 Upper: Premium 16" 5.56 NATO A2 Upper Receiver
The Sons of Liberty Gun Works M4-L89 Upper Receiver Group (U-M4L89-556-16-A2) is a high-performance, factory-assembled upper receiver built with the classic A2 configuration. This 16-inch 5.56 NATO upper features a traditional A2 front sight base and A2 flash hider, delivering the proven reliability and simplicity that many shooters prefer. Sons of Liberty Gun Works is recognized for producing some of the most durable and overbuilt AR-15 components on the market, and the M4-L89 series continues that reputation for excellence.
The M4-L89-16-A2 model combines modern manufacturing precision with the classic A2 setup that has been trusted for decades. This complete upper is an excellent choice for those who want a dependable, no-nonsense 16-inch upper receiver group that performs reliably in any environment. Whether used for duty, home defense, competition, or general-purpose builds, this upper delivers consistent accuracy and long-term durability.
Key Features of the Sons of Liberty Gun Works M4-L89 A2 Upper
16" 5.56 NATO Barrel
Full-length 16-inch barrel provides excellent velocity, accuracy, and terminal performance.
Classic A2 Configuration
Features a traditional A2 front sight base and A2 flash hider for proven reliability and simplicity.
Complete Upper Assembly
Includes upper receiver, barrel, gas system, handguard, and bolt carrier group for easy installation.
Duty-Grade Components
Built with premium Sons of Liberty Gun Works parts for exceptional strength and longevity.
Why Choose the Sons of Liberty Gun Works M4-L89 16" A2 Upper
The Sons of Liberty Gun Works M4-L89 Upper Receiver Group (U-M4L89-556-16-A2) is an outstanding choice for shooters who prefer the classic A2 setup combined with modern manufacturing quality. The 16-inch barrel length offers an excellent balance of velocity and handling, making it one of the most versatile barrel lengths for the AR-15 platform. The A2 front sight base provides a rugged, fixed sighting system that many users trust for its simplicity and durability.
Sons of Liberty Gun Works is known for producing components that exceed military specifications. The M4-L89 series is built with high-quality materials and strict quality control. This complete upper receiver group saves builders time and ensures all components are properly matched and tested together. The classic A2 configuration makes this upper particularly appealing to those who appreciate traditional AR-15 design while still wanting premium modern components.
Additional benefits include:
- Factory-assembled and quality-checked for reliability
- Classic A2 front sight base and A2 flash hider
- 16-inch barrel for optimal velocity and handling
- Premium Sons of Liberty Gun Works components throughout
- Excellent accuracy and long-term durability
- Ideal for duty, home defense, and general-purpose builds
- UPC 657628673057 for easy identification and ordering
Technical Specifications – Sons of Liberty Gun Works M4-L89 A2
| Specification | Details |
|---|
| Brand | Sons of Liberty Gun Works (SOLGW) |
| Product | M4-L89 Upper Receiver Group |
| Model Number | U-M4L89-556-16-A2 |
| UPC | 657628673057 |
| Caliber | 5.56 NATO / .223 Remington |
| Barrel Length | 16 inches |
| Front Sight Base | A2 |
| Muzzle Device | A2 Flash Hider |
| Configuration | Complete Upper Receiver Group |
| Intended Use | Duty, Home Defense, Competition, General Purpose |
Ideal Applications for the Sons of Liberty Gun Works M4-L89 A2 Upper
The Sons of Liberty Gun Works M4-L89 Upper Receiver Group (U-M4L89-556-16-A2) is well-suited for a wide range of users. The classic A2 configuration makes it a popular choice for those who prefer traditional AR-15 styling and fixed sights. It is an excellent option for duty rifles, home defense builds, and general-purpose AR-15s where reliability and simplicity are priorities.
This upper is also favored by shooters who want a complete, high-quality upper without needing to source individual components. The 16-inch barrel length provides strong ballistic performance while remaining easy to handle. Whether used for professional applications, recreational shooting, or as the foundation of a custom build, the M4-L89 A2 upper delivers consistent performance and long-term durability that Sons of Liberty Gun Works is known for.
This product is especially popular among duty rifle builders, traditional AR enthusiasts, and shooters seeking a high-quality 16-inch A2 upper receiver group from Sons of Liberty Gun Works.
Order the Sons of Liberty Gun Works M4-L89 A2 Upper Today
Build a reliable and accurate AR-15 with the Sons of Liberty Gun Works M4-L89 Upper Receiver Group (U-M4L89-556-16-A2). This premium 16" 5.56 NATO upper features a classic A2 front sight base and A2 flash hider. Order your Sons of Liberty Gun Works M4-L89 A2 Upper today and experience the quality and performance that SOLGW is known for.
Sons of Liberty Gun Works M4-L89 Upper Receiver Group | Model U-M4L89-556-16-A2 | UPC 657628673057 – 16" 5.56 NATO. A2 Front Sight Base. Complete Upper Assembly.
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