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    Home / Prometheus EG Stainless Steel Inner Barrel 370mm 6.03mm for Tokyo Marui M4A1 MWS

    Prometheus EG Stainless Steel Inner Barrel 370mm 6.03mm for Tokyo Marui M4A1 MWS

    SKU: LAY-139559 LaylaxIn Stock Map ProtectedPrice is map protected. Coupon(s) may not be applied to this item.

    • Precision 6.03 mm inner bore with +/-0.01 mm tolerance for consistent BB stability and accuracy
    • Made from enhanced stainless steel (SUS) for strength and dimensional stability without coatings
    • Designed to match Tokyo Marui specifications for direct fit with Marui gas blowback M4A1 MWS builds
    • Matched 370 mm length ideal for MWS platform custom builds and outer barrel compatibility
    • Outer diameter 8.5 mm for reliable fit inside common outer barrels
    • EG Barrel series offers multiple lengths so you can tailor range and handling to your setup
    • Manufactured in Japan with strict quality control for lasting performance
    $69.00
    Qty



    Prometheus EG Stainless Steel Inner Barrel 370mm 6.03mm for Tokyo Marui M4A1 MWS

    The Prometheus EG Stainless Steel Inner Barrel 370mm 6.03mm for Tokyo Marui M4A1 MWS is a premium upgrade designed to deliver unmatched accuracy, consistency, and durability to your gas blowback rifle. Built in Japan under strict quality control, this inner barrel is part of the renowned EG Barrel series known for precision engineering. Its 6.03mm tight bore with +/-0.01mm tolerance ensures superior BB stability, tighter groupings, and improved overall performance shot after shot. Constructed from stainless steel (SUS), the barrel offers enhanced strength and dimensional stability without relying on coatings, making it more resistant to wear and deformation under heavy use. At 370mm in length with an outer diameter of 8.5mm, it is perfectly suited for the Marui MWS platform and compatible with a wide range of outer barrels, giving players flexibility when building or upgrading their rifles. This Prometheus inner barrel is specifically engineered for Tokyo Marui specifications, making it a direct drop-in upgrade for the M4A1 MWS and other compatible builds. Players searching for high performance airsoft upgrades, tight bore inner barrels, or stainless steel precision parts will find this product to be an essential component for maximizing accuracy and consistency on the field. The 370mm length strikes an ideal balance for custom builds, enhancing effective range without sacrificing handling, while the stainless steel construction ensures longevity even through demanding skirmishes or training sessions. As part of the EG Barrel series, this inner barrel is also available in multiple lengths, allowing you to tailor your setup for CQB, field play, or long-range builds. Whether you are competing, training, or fine-tuning your rifle, the Prometheus EG Stainless Steel Inner Barrel 370mm delivers professional-level performance trusted by advanced players worldwide. Available now, it is the go-to choice for serious airsoft enthusiasts seeking a precision upgrade for their Tokyo Marui M4A1 MWS.


    In the Box

    1x Inner Barrel

    Specifications:

    Brand Prometheus
    Series EG Barrel
    Model Fit Marui Gas Blowback M4A1 MWS
    Length 370 mm
    Inner Diameter 6.03 mm +/-0.01 mm
    Outer Diameter 8.5 mm
    Material Stainless Steel (SUS)
    Made In Japan
    Compatibility Tokyo Marui specification inner barrels and a wide range of compatible outer barrels
    Safety Note Verify local joule/energy limits before installation and test across conditions to ensure compliance


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