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GHK M4 / M16 Airsoft AEG to GBB Complete Gearbox Conversion kit with magazine (Version 1)

ID: 38179 (GB-GHK-M4GBB-V1)
4.0 stars, based on 6 reviews
GHK M4 / M16 Airsoft AEG to GBB Complete Gearbox Conversion kit with magazine (Version 1)
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$99.00 $75.00

This is what G&G, Javelin and other GBB rifles have in them! This innovated GHK gearbox allows you to convert your Airsoft Electric rifle into a GBB in minutes! Swap back and forth with your gearbox for multiple gaming scenarios!
Conversion kit includes one $50 value GBB magazine!

  • Converts a standard M4 / M16 AEG Rifle into a GBB Rifle
  • High Strength Nylon Fiber Shell Construction
  • Full Metal Internal Parts
  • Realistic Blowback Action

  • Gas Type: Green Gas, Propane
    Compatibility For Tokyo Marui and other similar style M4 / M16 Series Airsoft AEG Rifles. Some modification may be required.
    Package Includes: GBB Gearbox, Hopup, Magazine

    Manufacturer: GHK

    Disclaimer: Please use discretion when installing custom parts as fit and compatibility may vary. Some modification may be required. Professional installation recommended.


    About GHK

    Established in Taiwan in 2008, GHK began as the leading manufacturer of AK style gas blowback rifles. In the intervening years GHK has grown to become one of the most highly regarded GBBR manufacturers in the industry.

    6 Customer Reviews

    (Write a review)

    by Tristan K. on 08/07/2015
    "I bought this and put in in my G&G cm16 combat machine. It is really high quality and I only had feeding problems with the first few fills of the magazine. Other than that, no feeding problems since!

    Awesome realistic recoil
    Perfect assault style fps
    Mags last 3-4 fills of bbs with just one fill of gas

    Installation required lots of modifications.
    Accuracy isn't like the original AEG

    Recommended if you want something cool! And gas powered obviously.
    by Phillip C. on 03/01/2015
    "Doesn't feed very well 75% of the time. I use all the gas in a magazine before I can shoot all the BB's out, simply because the hop up won't accept BB's.
    When it works, its great and fun.
    by chad a. on 02/11/2015
    "Bought this and a we tech aeg metal lower come to find out at least I'm my case that it requires serious modifications no matter what lower you are using a pain to install hope it is more fun to use once it's all installed. Gotta go buy more tools to finish before I can test it.

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