Jinming Gen8 Gen9 Gen10 Upgrade Metal Replacement Accessories Kit

Jinming Gen8 Gen9 Gen10 Upgrade Metal Replacement Accessories Kit

for scar and jm gen8 m4a1 or jm gen9 gen10 gel blaster gearbox upgrade

j8 package include:

1x 18:1 metal gears

1x piston with metal ladder

1x steel cylinder

1x high speed 460 motor 30000rpm

1x 1.2mm hardened spring 14cm

J9 J10 upgrade package include:

1x 18:1 metal gears

1x piston with metal ladder

1x steel cylinder

1x shs high speed 480 motor 36000rpm

1x 1.2mm hardened spring 14cm