5KU CNC Hop Up Chamber for WA M4 GBB


  • Model: AS4395
  • Manufactured by: 5KU


  • 5KU Hop Up Chamber Unit.
  • Full metal construction.
  • Replace Western Arms M4 series gas blow back rifle Original Hop Up unit.
  • Suitable for WA/G&P WOC M4 series airsoft GBB rifle.


  • 5KU model no. - GB-105
  • Color - Black
  • Weight - 20g
  • Material - Metal
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    This product was added to our catalog on Wednesday 31 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.