Amoeba Complete ECFS Version 2 Rear Wired Gearbox

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Replacement gearbox for rear wired ARES/Amoeba EFCS rifles and other AEGs with a standard V2 gearbox. This high quality Version 2 gearbox comes fully built and ready to drop-in your favorite AEG, and features a programmable Microswitch and low resistance silver wiring. The integrated Quick Change Spring System makes it simple and easy to upgrade or replace the spring mechanism within this gearbox.


  • Compatible with Rear Wired ARES/Amoeba EFCS Airsoft AEGs
  • Compatible with Other AEGs with Standard Version 2 Gearbox
  • Full Metal Gearbox Shell
  • Full Metal ARES EFCS Gear Set with Magnet
  • Polycarbonate Nozzle
  • Programmable Microswitch
  • Programming Unit Sold Separately
  • Quick Change Spring Guide
  • Reinforced Full Teeth Piston
  • Drop-in Installation
  • Low Resistance Silver Wiring
  • Upgraded Blue EFCS Circuit Board
  • 8mm Steel Ball Bearings
  • Electronic Trigger for Instant Trigger Response
  • Small Tamiya Connector
  • EFCS = Electronic Control Firing System
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