Sons of Liberty Gun Works M4-89 5.56 AR-15 Partial Upper Receiver Group - 11.5"

The Sons Of Liberty Gun Works M4-89 AR-15 5.56 NATO Barreled Upper Receiver is the perfect choice for those who demand the highest quality and performance from their firearms. This upper receiver is built with a forged 7075-T6 aluminum receiver and features an 11.5" barrel with a 1:7 twist rate. The barrel is made from chrome-moly vanadium steel and is finished with a QPQ corrosion-resistant coating.

The upper receiver features a carbine-length gas system for reliable and consistent performance. It has a 10.5" M89 handguard made from lightweight and durable aluminum with M-LOK attachment points for easy customization. A bolt carrier group and charging handle are not included, allowing users to add these components themselves for the perfect setup.

This upper receiver is compatible with any mil-spec lower receiver and is ready to be paired with your favorite optic and accessories. With the Sons Of Liberty Gun Works M4-89 AR-15 5.56 NATO Barreled Upper Receiver, you can trust in the quality and performance of your firearm.

Features:

• AR-15 barreled upper receiver
• 5.56 NATO
• 11.5" 4150 CrMoV barrel, QPQ finish
• 1/2x28 thread pitch
• Carbine gas system
• 10.5" M89 handguard
• High pressure tested (HPT)
• Magnetic particle inspected (MPI)

Specifications:

• Barrel Coating: Melonite
• Barrel Length: 11.5"
• Brand: Sons of Liberty Gun Works
• Caliber: 5.56 NATO
• Color: Black
• Gas System Length: Carbine
• Handguard: 10.5 in M-LOK Rail
• Muzzle Device: A2 Flash Hider
• Thread Pattern: 1/2 X 28