Big Dragon Steel 100:200 Helical High Torque Airsoft AEG Gear Set

Big Dragon
Code: BD1214
  • 100 to 200m/s
  • Steel Cut Gears
  • Rated Up To M140

Helical High Torque Airsoft AEG Gear Set, this gear set is designed for very high powered Airsoft AEGs. 

Full description


Suitable for Version 2 and Version 3 gearboxes your rate of fire will be slow with this set compared to a standard 18:1 set. The gears are rated for up to use of an m140 AEG spring. Ideal for anyone building a DMR project gearbox.


  • For use in high FPS builds
  • Steel construction
  • Must be shimmed perfectly
  • For use up to an M140 spring

Package Includes:

  • Steel 100:200 Helical  High Torque Airsoft AEG Gear Set



Internal Part Type


Colour Wheel Greyscale
Item Colour
Construction Icon

Part Specific

Part for Power Source Type

Electric Part Specific

Gearbox Version Compatibility Variant
Most Airsoft AEG

Size guide

Parts Fitting

Upgrades and Downgrades should only be undertaken by experienced players, or Airsoft Technicians. Please note, changing any internal parts of a weapon voids its warranty unless done in-house by our staff. 

Please ensure that when fitting parts the part purchased is the correct part, as once a part has been fitted we cannot accept return.

We do know that players love to tinker, so we're here to give you help should you require it, and if needed you can get in touch with our workshop for more help!

Unique Parts

Please note that some parts may be unique to a specific brand of weapon. For example: Parts for an ASG M4A1 may not fit an ICS M4A1.

Parts from the same brand typically have a high chance of fitting, though be warned, some replicas use unique parts, so please ensure the part will fit before you attempt to fit it.

If you require help with fitting any parts feel free to get in touch with us via our Contact Us Page.