Building Fire Steel Bolt Stop for WA M4 GBB


  • Model: AS5126
  • Manufactured by: Building Fire


  • Building Fire WA M4 Upgrade Parts.
  • CNC steel construction.
  • Steel made Bolt Stop.
  • Direct replacement of Western Arms M4A1 Bolt Catch (Part No.99).
  • Suitable for WA M4/M16 series GBB gun rifle.


  • Building Fire model no. - EP-39
  • Color - Black
  • Weight - 23g
  • Material - Steel
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    This product was added to our catalog on Thursday 13 September, 2012.

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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.