Sons Of Liberty Gun Works M4-89 300 Blackout AR-15 Barreled Upper Receiver - 13.9"

The Sons Of Liberty Gun Works M4-89 13.9" 300 Blackout AR-15 Upper is a compact and versatile upper receiver designed for reliability and exceptional performance. Featuring a 13.9-inch barrel with a pistol length gas system, this upper provides a balance of maneuverability and effective range. It features a Sons of Liberty Gun Works 4150CoMOV 1:7 MPI HPT barrel, ensuring durability and accuracy in any shooting application.

The barrel has a 1 in 7 twist rate and a six-groove design, for stability and consistent performance. The Sons Of Liberty Gun Works M4-89 13.9" 300 Blackout AR-15 Upper undergoes high-pressure (proof) testing and magnetic particle inspection (MPI) to ensure superior quality and safety. With its compact size and reliable construction, this upper receiver is suitable for various shooting needs.

Features:

• Compact and versatile design
• 13.9-inch barrel with pistol-length gas system
• Sons of Liberty Gun Works 4150CoMOV 1:7 MPI HPT barrel
• 1/7 twist rate with six grooves
• Pinned and welded NOX9 Key-Mo Muzzle Device
• QPQ corrosion-resistant barrel finish
• QPQ coated M4 feed ramp extension
• High-pressure (proof) tested and MPI inspected barrel
• Does not include BCG or charging handle
• Reliable performance and durability