Modify Upgraded Gear Box - AK-47 (Rear Wired)

Code: MOD-GC104201
  • Inspection Ports
  • Interlocking Design
  • Reinforced Gearbox

A complete reinforced Airsoft Gearbox for rear/top wired AK platform replicas, which is jammed packed with aftermarket parts and features to ensure top-tier performance.

Full description


This complete gearbox from Modify is part of the Torus series which are built for speed and accuracy, and features a reinforced design which massively improves on traditional gearbox design. The outer shell has an interlocking design which reduces torsion/twisting effects caused by forces inside the gearbox, and is fluted to improve strength, reduce overall weight and dissipate heat much more effectively than standard designs. Another interesting feature of the design is the multiple inspection ports which allow you to easily perform visual checks, and perform lubrication where required without disassembly. The shell is secured by oversized high-torque screws which ensure the shell is held together tight, and won't shake apart over the course of its' use.

This is a complete gearbox and includes the following parts:

  • SP100+
  • Rotary Spring Guide
  • Tappet Plate
  • Modular Gear 16.32:1
  • Selector Plate
  • Piston
  • Piston Head
  • Nozzle
  • Anti-Reversal Latch
  • Stainless 8mm Bushings
  • Cylinder
  • Cylinder Head
  • Cut Off Lever Ver. 3
  • Rear Wired Switch Assembly


  • Complete Gearbox
  • Reinforced Shell
  • Interlocked Design
  • Fluted Gearbox Case
  • Increased Strength
  • Reduced Weight
  • Efficient Heat Dissipation
  • Visual Inspection Ports
  • Easy Maintenance
  • High-Torque Screws
  • Rear/Top Wired
  • Mini Tamiya
  • Ready to Drop In
  • SP100+
  • 16.32:1 Gears

Package Includes:

  • Modify Upgraded Gear Box - AK-47 (Rear Wired)



Internal Part Type
Complete Gearbox
Patrol Base - Warning Icon
Patrol Base - Warning Icon
Parts Fitting

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 0.5kg


Colour Wheel Greyscale
Item Colour
Construction Icon
Internal Part Construction

Part Specific

Part for Power Source Type
Weapon Platform
AK Platform
Package Includes
Complete Gearbox

Electric Part Specific

Gearbox Icon
Gearbox Version
V3 Gearbox
Gearbox Version Compatibility Variant
Version 3

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.