CYMA Complete Version 2 Gearbox w/ Motor - Rear Wired

Code: CYM-08-004971
  • Complete V2 Gearbox
  • Pre-shimmed from the factory
  • Includes Standard long shaft motor

Has your M4 stopped firing? Either can't or won't go inside the gearbox to diagnose the issue? If you are anything like me, you will appreciate this item, as replacing the complete gearbox is the most time and cost-efficient method of bringing a dead AEG back to life. The gearbox comes fitted with a fuse and mini Tamiya connector and is pre-shimmed at the factory. This is a basic but affordable gearbox and is compatible with the vast majority of AEG AR15 replicas.

Full description


Package Includes

  • CYMA Complete V2 Gearbox
  • CYMA standard long-shaft motor



Internal Part Type
Complete Gearbox

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 0.679kg


Colour Wheel Greyscale
Item Colour

Part Specific

Part for Power Source Type
Weapon Platform
M4 / AR-15 / M16

Electric Part Specific

Gearbox Icon
Gearbox Version
V2 Gearbox
Gearbox Version Compatibility Variant
Version 2

Motor Specific

Airsoft Motor Icon
Motor Type
Motor Shaft Length
Motor Pinion Type

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.