Sons of Liberty Gun Works L89 Complete Upper Half 13.9in 5.56 Cold Hammer Forged Barrel Broadsword upper 13.75in L89 Rail P/W HUX XL No BCG or CH

All Sons of Liberty Gun Works upper receivers

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Sons of Liberty Gun Works L89 Complete Upper Half 13.9in 5.56 Cold Hammer Forged Barrel Broadsword upper 13.75in L89 Rail P/W HUX XL No BCG or CH - Upper Receiver for AR-15 - view 1

Sons of Liberty Gun Works

Overview

The Sons of Liberty Gun Works L89 Complete Upper Half features a 13.9-inch cold hammer forged barrel chambered in 5.56 NATO, providing excellent accuracy and durability for your AR-15 build. This complete upper includes a forged receiver for added strength and reliability, making it suitable for a variety of shooting applications. Typically, this upper is favored in builds that prioritize compactness and versatility, often seen in tactical or home defense configurations.

Specifications

MPNM4L89BSUPPER139CHF556XL
PlatformAR-15
AssemblyComplete
Barrel Length13.9
Receiver TypeForged
Caliber5.56 NATO

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Build history on GunPartPicker

Builders on GunPartPicker first added the Sons of Liberty Gun Works L89 Complete Upper Half 13.9in 5.56 Cold Hammer Forged Barrel Broadsword upper 13.75in L89 Rail P/W HUX XL No BCG or CH to a build in May 2026.

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