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    Home / Search / JBU Reinforced M4A1 Outer Barrel Set - w/ 363mm M4A1 Inner Barrel

    JBU Reinforced M4A1 Outer Barrel Set - w/ 363mm M4A1 Inner Barrel

    SKU: ACC-SDJA18 JBUOut of stock

    $79.95
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    JBU Reinforced M4A1 Outer Barrel Set - w/ 363mm M4A1 Inner Barrel

    This outer barrel set is crafted from aircraft grade aluminum and serves as a perfect upgrade part. This set comes with an M4A1 outer barrel and tight bore inner barrel that measures 6.03mm in internal diameter, providing maximum accuracy and increased FPS. Because these barrels are precision crafted, only high quality, precision grade BBs should be used with this inner barrel. Professional installation is recommended for anyone unfamiliar with installing a new inner barrel. The super slick performance finish strengthens and protects these barrels, while reducing friction (conserves velocity & back spin). This simple upgrade kit will result in improved accuracy and is perfect for converting M16s into M4 style AEGs or replacing old multi-piece outer barrels.

    Note: This outer barrel set is ready to use right out of the box, though professional installation is recommended/may be required. Please use only ultra high-quality precision seamless BBs in your gun after installing this barrel, as inferior grade BBs (i.e. BBs from sporting goods stores) WILL jam inside this barrel.


    In the Box

    M4A1 outer barrel

    tight bore inner barrel

    Specifications:

    Inner Barrel Diameter 6.03mm
    Inner Barrel Length 363mm
    Outer Barrel Type M4A1
    Barrel Construction Aluminum
    AEG Compatibility M4A1 AEGs


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