Broadsword-89 6mm Max Assembled Upper Receiver - Broadsword-89 6mm Max 20" Bbl 16.75" M89 Rail W/Nox
All Sons of Liberty Gun Works upper receivers
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Sons of Liberty Gun Works
Overview
The Broadsword-89 6mm Max Assembled Upper Receiver features a complete A4 receiver paired with a 20-inch barrel, designed specifically for the AR-15 platform. This configuration allows for optimized accuracy and performance, especially in long-range shooting scenarios where the longer barrel length contributes to increased velocity and improved ballistics. Builders often incorporate this upper receiver into precision-oriented builds or setups aimed at maximizing effective range.
Specifications
Broadsword-89 6mm Max Assembled Upper Receiver - Broadsword-89 6mm Max 20" Bbl 16.75" M89 Rail W/Nox
Build history on GunPartPicker
Builders on GunPartPicker first added the Sons of Liberty Gun Works Broadsword-89 6mm Max Assembled Upper Receiver - Broadsword-89 6mm Max 20" Bbl 16.75" M89 Rail W/Nox to a build in April 2026.
It was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $1,187.50 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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