The Whisper MK.II - Piston Head (PRE-ORDER)

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Toss it in any build you want and expect it to last longer than anything in the gearbox. The Whisper MK.II (Mark 2) is the strongest polymer piston head on the market. 

• CNCed from a block of Dupont Toughened Delrin

          Very low coefficient of friction and extremely high impact resistance

• As durable as an aluminum piston head
  while granting all the benefits of a polymer piston head.

• Specially designed radii prevents piston head from touching cylinder walls and creates a perfect seal around the oring instead of a flat surface. For use with #116 sized orings.

• High quality black oxide M3 Hex screw
  

• CNC aircraft grade aluminum threads

• Flat front face edge to edge to reduce dead zone
  Good for setups requiring maximum useable air volume.

• Slight AOE correction 
  Thicker by 0.5mm than average piston heads .
  

• Choice between Viton or Buna-N Oring :
  - Use Viton for scenarios needing lower friction.
  ie. Viton in indoor only fields with very low chance of debris getting into the cylinder
  - Use Buna-N for scenarios needing higher abrasion resistance.
  ie. Buna-N for outdoor setups where theres a higher likelyhood of sand and other stuff getting in your cylinder.