JM Gen11 Gen12 AK Gearbox

Features:

This gearbox is for both jinming J11 ak47 and J12 ak74u gel blaster gun.

Motor is included, and with 1.1mm stock spring.

Original factory made, high quality guaranteed.

Specifications:

Brand: jin ming.

Compatibility: jm gen11 and gen12 gel blasters.

Material: full nylon.

Plug type: sm plug.

Color: black.

Package includes: 1x JM gen11 gen12 gearbox .