5KU Steel Forward Assist for WA M4 GBB


  • Model: AS4412
  • Manufactured by: 5KU


  • 5KU Upgrade Parts.
  • Steel construction.
  • Bolt forward assist.
  • Suitable for Western Arms M4/M16 series airsoft GBB rifle.


  • 5KU model no. - GB-138
  • Color - Black
  • Weight - 30g
  • Material - Steel
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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.