Rock River Arms Completed Upper Receiver Left Handed RAGE .223/5.56mm 16 Inch Barrel 1/2-28 Thread Free-Float Handguard A2 Flash Hider Black
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Rock River Arms
Overview
The Rock River Arms Completed Upper Receiver is designed for left-handed shooters and features a 16-inch barrel chambered in 5.56 NATO, which delivers reliable performance for a variety of shooting applications. The complete assembly includes a free-float handguard that enhances accuracy by minimizing barrel harmonics, along with a 1/2-28 thread pitch for compatibility with a wide range of muzzle devices. This upper receiver is a solid choice for builds focused on precision shooting or tactical applications.
Specifications
Rock River Arms Completed Upper Receiver Left Handed RAGE .223/5.56mm 16 Inch Barrel 1/2-28 Thread Free-Float Handguard A2 Flash Hider Black
Available Merchants(1)
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Price Alert
September 2026 on GunPartPicker
Rock River Arms Completed Upper Receiver Left Handed RAGE .223/5.56mm 16 Inch Barrel 1/2-28 Thread Free-Float Handguard A2 Flash Hider Black ranked #117 of the 615 upper receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since September 2026. All time, it ranks #486 of the 1,706 upper receivers builders have added.
Today the one retailer we track has it in stock. Buying today, the lowest price is $439.99 at Optics Planet.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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