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Brownells
Overview
The Brownells BRN-180S AR-15 10" .300BLK Complete Upper is a fully assembled upper receiver designed for the AR-15 platform, featuring a 10-inch barrel optimized for .300 Blackout ammunition. This upper provides builders with a compact option that enhances maneuverability while delivering the performance required for close-quarters engagements and suppressed shooting. Builds incorporating this upper are often tailored for tactical applications or personal defense setups.
Specifications
Brownells BRN-180S AR-15 10" .300BLK Complete Upper
Available Merchants(3)
Prices checked
Stock Alert
Build history on GunPartPicker
Builders on GunPartPicker first added the Brownells BRN-180S AR-15 10" .300BLK Complete Upper 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 $899.99 at AR15 Discounts for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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