Sons Of Liberty Gun Works M4-89 AR-15 5.56 NATO Barreled Upper Receiver - 16"

The Sons of Liberty Gun Works M4-89 16" 5.56 NATO Barreled Upper Receiver is a high-quality upper receiver that is perfect for anyone looking to upgrade their AR-15. This upper receiver is made from top-quality materials and features a 16" barrel that is chambered in 5.56 NATO. The barrel is made from 4150 chrome moly vanadium steel and is finished in a black QPQ coating for added durability and corrosion resistance.

The upper receiver also features a standard A2 flash hider and a mid-length gas system for reliable and consistent performance. The handguard is a 15" M-LOK rail that is perfect for attaching accessories such as lights, lasers, and grips. The rail is made from 6061-T6 aluminum and is finished with a hard anodized coating for added durability.

Note: Bolt carrier group and charging handle are not included.

Features:

• AR-15 barreled upper receiver
• 5.56 NATO
• 16" 4150 CrMoV barrel, QPQ finish
• 1:7 twist
• 1/2x28 thread pitch
• .750" gas block
• Mid-length gas system
• 15" M-LOK rail
• QPQ M4 feed ramp extension
• High pressure tested (HPT)
• Magnetic particle inspected (MPI)

The Sons of Liberty Gun Works M4-89 16" 5.56 NATO Barreled Upper Receiver is also compatible with most AR-15 lower receivers, making it a versatile option for anyone looking to upgrade their rifle. Overall, this upper receiver is a top-quality option that is sure to provide reliable performance and durability for years to come.