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JBU Airsoft Ball Bearing Spring Guide for Ver. 3 Metal Gearboxes

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    Our take:  JBU's Steel Ball Bearing Spring Guides are a must for anyone installing an upgraded spring in their Version 3 metal gearbox. These steel ball bearing spring guides minimize stress on the gearbox, piston, gears and motor. Installing this spring guide also raises the rate of fire in most AEGS by allowing the spring to extend at a smoother and faster speed. The ball bearings at the rear of the spring guide relieve spring tension build up, which greatly reduces the chance of spring breakage. This Steel Ball Bearing Spring Guide was crafted using CNC machining and lives up to JBU's high quality control standards for their after market performance products.

    The JBU Steel Ball Bearing Spring Guide is a great buy that not only raises the performance of AEGs, but also protects the gearbox by minimizing spring tension. And, no retailer has a better deal on JBU products than Airsoft Megastore!

    Precision manufactured to ensure durability and high quality.

    Note:  Ready to use right out of the box, though professional installation is recommended/may be required.

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    Product Reviews

    Works fine for me
    By: Drew

    "Bought this to replace the stock plastic spring guide in my CYMA M14, but ended up using it in my CYMA AK47 instead. Seems to work fine and haven't had any problems so far. Note that this spring guide is for a Version 3 gearbox, and will not work in other gearbox designs (with the exception of CYMA's M14 V7 gearbox). Highly recommended to lengthen the life or your spring and other gearbox parts."

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    Does the job well
    By: TJ

    "Not really anything to say, it will last longer than plastic stock ones, arguably forever as its really durable metal. So yeah, looking to upgrade your V3 buy this."

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