Sons Of Liberty Gun Works M4-EXO3 5.56 AR-15 Complete Upper - 13.7" w/ P&W HuxWrx Muzzle Device - 30250

Discover the ultimate in reliability and performance with the Sons Of Liberty Gun Works M4-EXO3 5.56 AR-15 Complete Upper – 13.7″ w/ P&W HuxWrx Muzzle Device. Engineered for demanding tactical applications, this third-generation EXO series upper delivers battle-proven durability without unnecessary frills, making it the go-to choice for law enforcement, hunters, and home defenders seeking a no-fail firearm solution. With its pinned and welded HuxWrx muzzle device extending the effective length to 16 inches, this upper ensures compliance while optimizing balance and maneuverability in tight spaces.

Key Features

• Precision Barrel Construction: Crafted from 4150 Chrome Moly Vanadium steel, heat-treated for superior strength and longevity, this 13.7-inch barrel features a 1:7 twist rate ideal for stabilizing a wide range of 5.56 NATO ammunition, from lightweight varmint rounds to heavier barrier-penetrating loads.
• Advanced Muzzle Device: The HuxWrx flow-through muzzle device reduces gas blowback and recoil, enhancing shooter comfort and follow-up shot speed, while the pin-and-weld configuration maintains NFA compliance without sacrificing performance.
• EXO3 M-LOK Handguard: This 13-inch free-float rail offers ample real estate for accessories like lights, lasers, and grips, with improved stiffness from 4140 steel barrel nut and anti-rotation tabs for rock-solid stability during extended sessions.
• Complete Assembly: Includes a Mil-Spec bolt carrier group (BCG) and ambi charging handle, fully tested via high-pressure proof (HPT) and magnetic particle inspection (MPI) to guarantee flawless cycling and extraction under extreme conditions.

Technical Specifications

• Caliber: 5.56 NATO
• Barrel Length: 13.7 inches (pinned to 16 inches OAL)
• Gas System: Mid-length for smoother operation and reduced wear
• Barrel Finish: Nitride/Melonite for exceptional corrosion resistance and extended barrel life
• Barrel Profile: Government/SOCOM for optimal weight distribution
• Twist Rate: 1:7 RH
• Weight: Approximately 4.4 lbs (112.08 oz total assembly)
• Compatibility: Standard AR-15 lower receivers

Why Choose the M4-EXO3 Upper?

This upper addresses common pain points in tactical builds: excessive maintenance and unreliable performance in adverse environments. Its QPQ-coated components resist fouling and rust, allowing you to focus on the mission rather than upkeep. Users praise its consistent accuracy—grouping sub-MOA with match ammo—and the HuxWrx device’s ability to minimize muzzle rise, enabling faster target reacquisition. Whether you’re upgrading your duty rifle or building a custom defender, the M4-EXO3 provides uncompromising reliability at a value that outperforms pricier alternatives.

Elevate your AR-15 setup today with the Sons Of Liberty Gun Works M4-EXO3 Complete Upper. Its rugged design and thoughtful engineering make it ready for real-world challenges—secure yours and experience the difference in precision and dependability.