Sons of Liberty Gun Works M4-L89 5.56 NATO Barreled Upper Receiver - 16" - No Muzzle Device
All Sons of Liberty Gun Works upper receivers
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Sons of Liberty Gun Works
Overview
The Sons of Liberty Gun Works M4-L89 is a complete barreled upper receiver designed for the AR-15 platform, featuring a 16-inch barrel chambered in 5.56 NATO. This upper is engineered to deliver reliable performance and accuracy, making it a solid choice for both tactical and competitive applications. Builders often incorporate this upper into mid-length builds that prioritize maneuverability and versatility.
Specifications
Sons of Liberty Gun Works M4-L89 5.56 NATO Barreled Upper Receiver - 16" - No Muzzle Device
Available Merchants(1)
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Stock Alert
Price and stock
The Sons of Liberty Gun Works M4-L89 5.56 NATO Barreled Upper Receiver - 16" - No Muzzle Device 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 $855 at Primary Arms for when it comes back.
Prices checked · refreshed daily across 37 retailers
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