Forged A4 Upper Receiver Assembly
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specifications

Manufacturer:

Rock River Arms

Platform:

AR-15

    Forged A4 Upper Receiver Assembly

    Caliber Manufacturer Color Weight Merchant Price Merchant URL
    None Rock River Arms None None None $99.90 Brownells Add

    Prices last checked June 2020. Prices and availability change often, so confirm on the retailer's site.

    Forged aluminum A4 style upper receivers with ejection port cover and forward assist installed. Features M4 feed ramps.


    Big Book Catalog, Issue:70, Page:004

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