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Sijun Advance Gearbox

Sijun Advance Gearbox
  • Stock: Out Of Stock
  • Model: Sijun Advance Gearbox
  • Weight: 0.25kg
USD48.75

Sijun Advance Gearbox comes comes with metal gears upgrade and a change in a piston rod.

Gives a higher output of air for higher FPS for the Sijun Blaster units.

UPDATE (30/7/2021)!!: Gearbox unit now has the upgraded blowback piston rod with metal teeth.

Doesn't include Motor.

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