RX AK Gearbox High Speed Upgrade Parts and 3 MOA) for optimum

and 3 MOA) for optimum versatility

Full auto pusher

and fast roping

- The ump45 gel blaster is with jm gen8 gearbox

Version: v4

RX AK Gearbox High Speed Upgrade Parts and 3 MOA) for optimumUpgrade your RX AK gel blaster's gearbox with this high speed upgrade parts kit. The durable build increases the rate of fire and firepower for enhanced performance, while using a unique 27000rpm motor and high quality bearings to prevent heat generation and damage. Features: high durability build for rx ak gel blasters' gearbox, also improve rate of fire and firepower. The rx gearbox cannot support a motor with its speed too high as it could damge