SHS CNC Aluminum Double O-Ring Ball Bearing AEG Piston Head (Advanced Type)

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This is the most advanced version with 8 ventilation holes (in opposed to 6), double o-ring (in oppose to one), and ball-bearing. The piston head is constructed out of CNC Aluminum for durability and precision.


  • High Quality CNC Aluminum
  • Double O-ring Design for Excellent Pressure Seal
  • Ball Bearing Prevents Binding
  • 8-holes for higher speed and rate of fire.
  • Anodized Coating


  • Compatibility: For most Standard Tokyo Marui Style Airsoft AEG Gearboxes
  • Material: CNC 6061-T6 Aluminum

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