M4A1 GBG Gel blaster Upgraded


Full upgraded gel blaster

Develop and improve form A to Z

Fires: 330 FPS

No-assembled version (easy with the video instruction)

Preparation times: 5-8 days

Delivery times: 15-25 days



    The Colt M4A1 is an evolution of the famous Colt M4 which has been used by the US military since 1994. This version of the COLT M4 is equipped with the free burst function and has a removable handle that can be replaced by a vision scope.

    Jinming's interpretation has a viewfinder with a laser on top.

    The M4A1 have 4 other side rails to add some accessories.

    The M4A1 J8 is one of the greatest successes of recent years. It marks a major turning point in the world of gel blasters.

    This blaster gel has the famous 8th generation gearbox from Jinming. It is made of PC which makes it firm and solid. The texture is also more qualitative than the previous generations.

    This water gun is really appreciated by users because it is easy to use and offers an unlimited number of possibilities for improvement.

    Indeed, from the gearbox to buttstock, all can be upgrade. You can add metal parts, anodized parts, increase performance by optimizing the gearbox or changing the battery. 



    Video: Coming soon


    Presentation of GBG M4A1 UPGRADED:

    Full upgraded parts:
    Metal fish bone
    Metal bucket
    Metal triangle aiming
    Metal butt
    XM316 receiver
    J8 Magazine

    Nylon gearbox shell
    Special upgrade motor
    Upgrade motor
    Metal piston teeth and and double o ring piston head
    Metal gear
    Metal tie rod
    Nylon rubber column plug
    Metal cylinder
    Metal pusher
    Metal aluminum barrel tube
    Upgrade 1.4 Spring
    11.1V battery + 11.1V charger








  • Brand: GBG

    Model: M4A1 UPGRADED

    Version:  J8

    Color: Black

    Material: Nylon, metal and electronic components

    Use age: 14 years old and above

    Size balls: 7-8 mm

    Size: 71 x 30 cm