SYSTEMA Airsoft M120 Irregular Pitch Taper Spring [350 - 400 FPS]

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    Our take:  Systema is renowned in the airsoft world for their top-of-the-line craftsmanship on all their manufactured parts and products, and is also attributed with having a world-class R&D process through which all products undergo prior to making it into their product repertoire.  Their AEG springs are no exception.  It's no wonder why more airsoft-enthusiasts choose SYSTEMA as their upgrade part of choice, over the many other brands of upgrade parts available.

    Airsoft Megastore stocks SYSTEMA direct from the manufacturer, meaning you will find the LOWEST price on SYSTEMA parts at Airsoft Megastore than from any other retailer, guaranteed!  Pricing on the sticker states:  Y1,680 Yen, or roughly $17.83 US Dollars.  Because we purchase direct, we can offer it to you for BELOW what it would cost you to purchase this same exact spring in Japan, the country of origin!


    - Irregular pitch upgrade spring made with oil temper wire
    - Works with most-all metal gearbox AEGs with any version gearbox (with the exception of the Marui PSG-1 sniper)
    - 350-400+ FPS of power with correct installation and other gearbox parts capable of handling an M120

      Any and all airsoft upgrade parts purchased from Airsoft Megastore will be used/installed at owner's discretion. Actual performance results depend on quality of installation, airsoft AEG barrel length, tightness of the air nozzle seal, and other possible performance-affecting factors.  We are not responsible for any damage that may occur with improper installation.  For best results, please do all upgrades at a certified professional airsoft technician/shop.

    SYSTEMA Airsoft M120 Irregular Pitch Taper Spring [350 - 400 FPS] Categories:

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    ***** 4 / 5
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    Product Reviews

    nam m16
    By: Faceeman

    "not saying i would,but if i got this,could i put it in a spring vietnam m16a1?"

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    By: Random Airsofter

    "Would this work in the JG m5 s6 with out breaking it or causing it any damage?"

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    By: John Wang

    "For all previous questions, I use this spring in both of my guns and have been using for a long time now. Springs will fit ANY gun no matter what gearbox version, with the exception of bolt action snipers and cybergun items."

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    De AK47 Krinkov?
    By: Raphael Turrigiano

    "Will it work in the DE AK47 Krinkov?"

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    Son of a Gun
    By: Rhino

    "At first, I was worried. Disassembling my mechbox, I realize the 120 spring is inches longer than my stock spring, and more rigid too. It was a near impossible task for ME to install it. So did I take it to a professional and pay good money for them to do it? Nah, I just took it over to the stove, and heated up one end. This allowed me to compress it and shave of some inches. Admittedly this can lower your maximum FPS, but it worked like a charm. Once installed, I shot around 370fps with .20g's. "

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    to the guy below me
    By: Tyrone Brown

    "Yea thisll work with your gun the way it is. This is probably the only spring u can get that wont force u to upgrade ur whole gun to metal internals. and yes this will work with ur g36 jg. And mills this will work in you M16"

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    By: Mills Notmeyer

    "hey will this work with a m16?"

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