[5KU] Rear Adjustment Hop-Up Chamber[For WA M4 GBB Series]

SKU: AA#00351

Factory Code: GB-121

Brand: 5KU

  • $18.50
    Unit price per 
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[5KU][GB-121] Rear Adjustment Hop-Up Chamber[For WA M4 GBB Series]
  • 5KU Hop Up Chamber Unit.
  • Rear adjustment.
  • Full metal construction.
  • For WA/G&P WOC M4 series airsoft GBB rifle with AEG type barrel.
  • Replace Western Arms M4 series gas blow back rifle original Hop Up unit.
  • Accomplish to use with AEG type inner barrel.
  • As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed.
  • 5KU model no.: GB-121
  • Weight: 28g
  • Compatiblity: WA M4 Gas Blowback GBB Series
  • Built Material - Full metal construction
Package Contents:
  1.  Hop-Up Chamber x 1set

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