GBG create a upgraded version of the KUBLAI K1

305-320 FPS

Good product with good performance!

Build by us, for your pleasure






     Presentation video of the original version. 


     FPS test of Upgrade KUBLAI K1. 


    Presentation of KUBLAI K1:

    Kublai change rules of the gel blaster market by creating superious quality products.


    The Kublai K1 is the interpretation of the brand of the M4A1 rifles. The feel of this product is incredible We feel that is a top-of-range product. The materials are of high quality and the K1 is well finished.

    The body of the KUBLAI K1 is made on nylon. 
    This gel blaster use V2 gearbox nylon style from Kublai with:
    - 480 motor
    - ABS gears

    It use some metal parts like:
    - Metal Fire select switch mode
    - Metal Magazine
    - Metal Spring retainer
    - Metal Trigger
    - Metal mag release
    - Metal buffer core
    - Metal sight
    - Metal cap
    - Metal barrel

    The FPS of the original version is around 230.

    For those who want an even more efficient product, GBG has developed and upgraded version.

    This version go up to 300-320 FPS


    Detail of upgraded parts: 

    Metal gears
    Metal gas cylinder
    Metal cylinder
    Double o ring metal cyinder head
    nylon piston
    11.1V Battery + Charger

    KUBLAI K1 presentation in image. 

    This product use high quality fishbone and aluminium guide tube.



    The finishing and the materials are premium.

    The window:

    This product use metal butt core. A first for a mass distribution product.  

    The metal magazine:

    What is included in the box of the gel blaster KUBLAI K1?

    1 x gel baster 

    1 x magazine

    1 x 7.4V battery 

    1 x USB Charger

    1 x Packet of gel balls

    1 x safety glasses

    1 x bottle

    The KUBLAI K1 is no longer working?

    KUBLAI K1 create a very high quality product for long term. 


    If there's ever a problem, we will solve it. 

    How to use this gel blaster gun?


    1. Install the product according to the instructions.
    2. Soak the balls in as much water as possible for 4 to 6 hours.
    3. In same time, charge the battery.
    4. Place the battery.
    5. Fill the magazine with gel balls.
    6. Let’s go for the adventure.

    Detailed explanations:

    1. Install the product according to the instructions.


    1. Wire docking
    2. Install the grip
    3. Place the battery
    4. Install the rear support folding
    5. Install the muzzle, mechanical sight, barrel and fire cap
    6. Fix it

    We will help if necessary.

    1. Soak the balls in as much water as possible for 4 to 6 hours.


    Whish gel balls should be use?

    This model uses 7-8 mm gel balls. The optimal size is 7.45 mm.

    You can find the perfect gel balls for this model here:

    Gel balls are available in 2 packages: 20000 or 40000 gel balls and 4 colors: Clear, Blue, Orange and Green.

      1. Charge the battery

    Connect the battery to the USB charger. Its 3 pins charger used for this type of battery.

    Connect the USB to your computer.

    When the LED turn to green, its OK.


    1. Place the battery


    It is necessary to place the battery in the grip.


    1. Fill the magazine with gel balls.

    1. Open the magazine
    2. Pouring the balls
    3. Preload
    4. Shot

    What is the performance of this gel blaster?


    Original: 220-230 Feet per Second

    Upgraded: 300-320 Feet per Second

    What is the capacity of the magazine?


    The capacity of the magazine is about 200 gel balls.



    What is the size of the product?


    The product is 80 cm long and 27 cm high.








  • Brand: KUBLAI

    Model: K1

    Color: Black

    Material: Nylon ABS, metal and electronic components

    Use age: 14 years old and above

    Size balls: 7-8mm

    Size: 80 x 27 cm