Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 14.5" Med Bbl Complete Upper W/13.5" Handguard
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Overview
The Brownells BRN-4 Complete Upper Receiver features a 14.5-inch barrel chambered in 5.56 NATO, designed for optimal performance in an AR-15 platform. This complete assembly allows builders to easily upgrade or replace their existing upper without the need for additional parts, ensuring a straightforward installation process. This upper receiver is often utilized in compact, lightweight builds that prioritize maneuverability and versatility.
Specifications
Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 14.5" Med Bbl Complete Upper W/13.5" Handguard
Available Merchants(1)
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Stock Alert
Price and stock
The Brownells Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 14.5" Med Bbl Complete Upper W/13.5" Handguard 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 $1,361.99 at Brownells for when it comes back.
Prices checked · refreshed daily across 37 retailers
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