5KU Gearbox Spring Set for Version 2/3 AEG


  • Model: AS4253
  • Manufactured by: 5KU


  • 5KU airsoft AEG upgrade part series.
  • Essential part for upgrading your airsoft electric gun AEG.
  • To build a tight & durable gearbox.
  • Replacement of gearbox internal springs.
  • Suitable for airsoft electric gun Ver. 2/3 gearbox.
  • This Set Includes: Tappet Spring, Safety Cover Spring, Cutoff Lever Spring, Switch Spring, Reversal Stop Latch Spring.
  • As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed.


  • 5KU model no. - 5KU-63
  • Material - Copper
  • Weight - 10g
  • Gearbox type - Version 2/3
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    This product was added to our catalog on Wednesday 24 August, 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.