Radical Firearms

Radical Firearms 5.56 Integrally Suppressed Upper Receiver - 16.5"

All Radical Firearms upper receivers
Radical Firearms 5.56 Integrally Suppressed Upper Receiver - 16.5" - Upper Receiver for AR-15 - view 1
Radical Firearms 5.56 Integrally Suppressed Upper Receiver - 16.5" - Upper Receiver for AR-15 - view 2
Radical Firearms 5.56 Integrally Suppressed Upper Receiver - 16.5" - Upper Receiver for AR-15 - view 3
Radical Firearms 5.56 Integrally Suppressed Upper Receiver - 16.5" - Upper Receiver for AR-15 - view 4
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Radical Firearms

Overview

The Radical Firearms 5.56 Integrally Suppressed Upper Receiver features a 16.5-inch barrel and is designed for the AR-15 platform, providing a complete assembly that simplifies your build process. This upper receiver integrates a suppression system directly into the barrel, allowing for a quieter shooting experience while maintaining the versatility of the 5.56 NATO caliber. Typically, this upper is favored in builds that prioritize stealth and efficiency in performance.

Specifications

MPNRFISU556
PlatformAR-15
Caliber5.56 NATO
AssemblyComplete
Barrel Length16.5

Available Merchants(1)

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$1,075
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September 2026 on GunPartPicker

Radical Firearms 5.56 Integrally Suppressed Upper Receiver - 16.5" ranked #267 of the 615 upper receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #658 of the 1,711 upper receivers builders have added.

Today the one retailer we track is out of stock. Listed prices start at $1,074.99 at BattleHawk Armory for when it comes back.

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