Sons of Liberty Gun Works M4-EXO3 AR-15 16 inch .223 Wylde Upper Receiver Group Medium Midlength 1-7 A2 Black
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Sons of Liberty Gun Works
Overview
The Sons of Liberty Gun Works M4-EXO3 AR-15 Upper Receiver Group is a complete assembly designed for builders looking to enhance their AR-15 platform. Featuring a 16-inch barrel chambered in .223 Wylde, this upper allows for versatility in ammunition selection and is optimized with a mid-length gas system for smoother cycling and reduced recoil. The 1:7 twist rate is ideal for stabilizing heavier projectiles, making this upper a solid choice for a variety of tactical and precision builds.
Specifications
Sons of Liberty Gun Works M4-EXO3 AR-15 16 inch .223 Wylde Upper Receiver Group Medium Midlength 1-7 A2 Black
Build history on GunPartPicker
Builders on GunPartPicker first added the Sons of Liberty Gun Works M4-EXO3 AR-15 16 inch .223 Wylde Upper Receiver Group Medium Midlength 1-7 A2 Black to a build in June 2026.
It was out of stock everywhere we track for all of September 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $675 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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