Action Aluminum Dual O-Ring Cylinder Head for Ver.3 Gearbox


  • Model: AS3960
  • Manufactured by: Action


  • ACTION AEG upgrade part series.
  • Aluminum construction.
  • Replace cylinder head for your airsoft electric gun original part.
  • Dual O-Ring for better air sealing.
  • Suitable for AK series airsoft electric gun AEG gearbox (Version 3).
  • It keeps the nozzle stroking at the exact center of the cylinder.
  • It also stabilizes the loading system.
  • As always, upgrading AEG require necessary skill and technique to dissemble the gearbox, consult expertise if needed.


  • Action model no. - A-GCB-03
  • Color - Silver
  • Weight - 23g
  • Material - Aluminum
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    This product was added to our catalog on Friday 24 June, 2011.

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    Disclaimer: All airsoft guns, gas blowback guns, spring guns are NOT real firearms. All airsoft guns sold to US customers are affixed with an orange tip permanently.