Airsoft Guns Buyers Guide
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Airsoft AEG Gearbox and Accessories

The Skeleton of an Airsoft Gun?

In this category, you will find complete gearboxes from top manufacturers with high quality performance parts. Complete gearboxes are an easy way to upgrade your airsoft guns performance. Reinforced gearboxes are important if you plan on upgrading your gun to have a higher velocity since an upgraded spring usually puts more strain on your stock gearbox and stock gearboxes tend to warp and crack when a high tension spring is installed.

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Modify M4 S120 Torque Complete Gearbox - Front Wired/T-Connector
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Modify M4 S120 Torque Complete Gearbox - Front Wired/T-Connector

  • Modular Gear Set (21:6:1)
  • Selector Plate
  • M120 Tuned Spring
  • T Connector
  • 45-Day Warranty

$248.00

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Modify Spring Set for Ver.2/Ver.3 Gearbox

Modify Spring Set for Ver.2/Ver.3 Gearbox

  • Metal Construction
  • Designed for a Ver. 2 or Ver. 3 Gearbox
  • 45 Day Warranty

$7.00

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Modify Speed M100 Complete Version 2 Gearbox for M4 - Front Wired/Ultra Plug
qualifies for free shipping

Modify Speed M100 Complete Version 2 Gearbox for M4 - Front Wired/Ultra Plug

  • Upgraded Internal Components
  • Complete Gearbox Assembly
  • Steel 8mm Bushings
  • Modify 8mm Torus Mechbox
  • Low Resistance M4A1 Wiring Harness

$248.00

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Modify M16 Speed Complete Mechbox-Rear Wired with T-Connector (Speed Type/S100+)
qualifies for free shipping

Modify M16 Speed Complete Mechbox-Rear Wired with T-Connector (Speed Type/S100+)

  • Drop In Assembly
  • Upgraded Internal Components
  • Complete Gearbox Assembly
  • 45 Day Warranty

$248.00

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Modify M16 Torque Complete Mechbox-Rear Wired with T-Connector (Torque Type/S120+)
qualifies for free shipping

Modify M16 Torque Complete Mechbox-Rear Wired with T-Connector (Torque Type/S120+)

  • Drop In Assembly
  • Upgraded Internal Components
  • Complete Gearbox Assembly
  • 45 Day Warranty

$248.00

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Modify Torus Ver. 2 Reinforced 8mm AEG Gearbox w/ Tappet Plate

Modify Torus Ver. 2 Reinforced 8mm AEG Gearbox w/ Tappet Plate

  • Reinforced Gearbox Shell
  • Designed for High ROF & High FPS Setup
  • Ports for Quick Internal Examination
  • Includes: One (1) Gearbox Shell

$77.38

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Modify Torus Ver. 2 Reinforced 7mm AEG Gearbox w/ Tappet Plate

Modify Torus Ver. 2 Reinforced 7mm AEG Gearbox w/ Tappet Plate

  • Reinforced Gearbox Shell
  • Designed for High ROF & High FPS Setup
  • Ports for Quick Internal Examination
  • Includes: One (1) Gearbox Shell

$72.08

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