SHS Aluminum Bore-Up Piston Head

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Achieve ultimate compression and maximize your rifles full potential with this 8-hole piston head upgrade from SHS. This high end upgrade is crafted fully from airplane grade CNC aluminum for a long lasting and lightweight build. Unlike most stock AEG cylinder heads, this one features a high quality O-ring providing a tight seal and successfully preventing air from leaking from the gearbox. Being able to trap the air within the gearbox produces a tighter compression which results in a higher FPS and increased shooting performance. A dense rubber pad on the rear of the cylinder acts as a cushion to absorb impact from the piston, greatly reducing overall vibration during gameplay. The universal design of this high-flow impact resistant cylinder head allows it to be used as an upgrade in most AEGs running on a Version 2 gearbox.


  • Compatibility: Most Version 2 Gearboxes
  • Color: Red
  • CNC Machined Aluminum Build
  • Increases Overall FPS
  • Tighter Internal Compression
  • Integrated O-Ring for an Airtight Seal
  • High Air Flow - 8-Hole
  • Rubber Pad on Cylinder Head Absorbs Vibration
  • Impact Resistant
  • Easy to Install Upgrade


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