• Modular Gear Set, Smooth 8mm Ver.2/Ver.3, Torque 21.6:1 - Modify Airsoft parts
  • Modular Gear Set, Smooth 8mm Ver.2/Ver.3, Torque 21.6:1 - Modify Airsoft parts


Material Steel Finish Thermal Treatment


SMOOTH Modular Gear Set - 8mm for Ver.2/ Ver.3 Gearbox

TORQUE 21.6:1


  • Suitable for Ver.2/ Ver.3 gearboxes including Ver.2 CA, G&P reinforced gearboxes.
  • Steel construction for strength and durability.
  • Easy installation without need to adjust inter-gear gap.
  • Precision gears for smooth operation and easy upkeep.
  • Elliptical hole for adjustment to secure gearbox. 21.6:1 gear ratio.
  • Exacting design, special gear ratio and nano-treated surface.

NOTE: Remove nut counter-clockwise to replace gears.

Modify Steel Torque-type SMOOTH Modular Gear Set is extremely tough, durable, featuring exacting design and special surface treatment to result in precision, no-stick operation coupled with significantly improved anti-fatigue characteristic to enhance durability.

Equally important is Modify SMOOTH Gear Set's modular design ends the need for airsoft players to have to adjust inter-gear gaps. It's also easy, simple to install, with reduced friction coefficient to result in quieter operation.



On an airsoft gun with the same motor, a high gear ratio achieves greater torque to be able to compress stronger spring to result in higher muzzle velocity but lower FPS. In contrast, a lower ratio achieves lower torque with capacity to only compress weaker springs to result in lower muzzle velocity but higher FPS.