Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 13.7'''' Medium Chrome Lined Barrel Black
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Brownells
Overview
The Brownells BRN-4 Upper Receiver Assembly is a complete unit designed for builders looking to enhance their AR-15 setup. Featuring a 13.7-inch barrel, this assembly provides a balance between maneuverability and accuracy, making it suitable for a variety of shooting applications. Its sleek black finish adds a professional touch to any build, and this upper is commonly found in tactical and precision-focused configurations.
Specifications
Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 13.7'''' Medium Chrome Lined Barrel Black
Build history on GunPartPicker
Builders on GunPartPicker first added the Brownells Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 13.7'''' Medium Chrome Lined Barrel Black to a build in May 2026.
It 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 $1,119.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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