Sons of Liberty Gun Works M4-L89 CHF 5.56 NATO Barreled Upper Receiver - No Muzzle Device - 13.9"

Name: Sons of Liberty Gun Works M4-L89 CHF 5.56 NATO Barreled Upper Receiver - No Muzzle Device - 13.9"
Brand: Sons of Liberty Gun Works
SKU: M4L89UPPER-13-9-CHF-556
Price: 837.19 USD
Availability: OutOfStock

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Sons of Liberty Gun Works M4-L89 CHF 5.56 NATO Barreled Upper Receiver - No Muzzle Device - 13.9" - Upper Receiver for AR-15 - view 1

Sons of Liberty Gun Works M4-L89 CHF 5.56 NATO Barreled Upper Receiver - No Muzzle Device - 13.9" - Upper Receiver for AR-15

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Sons of Liberty Gun Works

Overview

The Sons of Liberty Gun Works M4-L89 CHF 5.56 NATO Barreled Upper Receiver is a complete assembly designed for the AR-15 platform. With a 13.9-inch barrel, it offers a balance between compactness and ballistics, making it suitable for a variety of shooting applications. This upper receiver is a solid choice for builds focused on maneuverability, often found in modern sporting rifles or compact setups.

Specifications

MPNM4L89UPPER-13-9-CHF-556

Barrel Length13.9

AssemblyComplete

Caliber5.56 NATO

PlatformAR-15

Receiver TypeM4

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Sons of Liberty Gun Works M4-L89 CHF 5.56 NATO Barreled Upper Receiver - No Muzzle Device - 13.9"

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Prices checked Oct 12, 2026

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$837

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Price and stock

The Sons of Liberty Gun Works M4-L89 CHF 5.56 NATO Barreled Upper Receiver - No Muzzle Device - 13.9" was out of stock everywhere we track for all of September 2026, and today the one retailer we track is out of stock. Listed prices start at $837.19 at Brownells for when it comes back.

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Prices checked Oct 12, 2026 · refreshed daily across 37 retailers