Home / JBU Full Metal Version 3 Gearbox FPS Upgrade Kit for AK/ AUG/G36 AEGs

    JBU Full Metal Version 3 Gearbox FPS Upgrade Kit for AK/ AUG/G36 AEGs

    SKU:  ACC-SDJA44 JBU Out of stock

    • - 1x M120 Spring
    • - 1x Aluminum Steel Teeth Piston
    • - 1x Ported Aluminum Piston Head w/ Bearings
    • - 1x Full Seal Aluminum Cylinder
    • - 1x Aluminum Cylinder Head
    • - 1x Steel Ball Bearing Spring Guide
    • Compatibility: Designed for Version 3 Gearbox equipped AUG, AK, G36, and MP5K AEGs. Make certain that your AEG is compatible with these upgrade components.

    1000 pc/case

    UPC code:


    JBU Full Metal Version 3 Gearbox FPS Upgrade Kit for AK/ AUG/G36 AEGs

    This high quality Version 3 gearbox upgrade kit features a powerful M120 spring, that is sure to raise the FPS of your Version 3 gearbox equipped AEG. Also included in this premium upgrade package is an aluminum, steel teeth piston head, a ported aluminum piston head, a full seal cylinder, an aluminum cylinder head, and a steel bearing spring guide. If you want to maximize the performance of your AEG, this is the upgrade kit for you!

    NOTE: Professional installation is recommended/may be required. Airsoft Megastore is not responsible for the installation of these components, or damage to your AEG caused by installing these components. Make sure to check the compatibility of your AEG and your AEG's gearbox with these upgraded internal parts. This upgrade kit is for full metal Version 3 Gearboxes only!


    In the Box

    Specifications:



    California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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