Bore-Up Cylinder

Availability: In stock (6)
Brand: Modify

With large cavity to produce more air. Stainless steel construction with thin walls and smooth inside finish.


  • Stainless 304 material / 5 types
  • Ribbed surface finish increases cylinder-surface-to-air area to thus increase heat dissipation
  • Fine inner surface finish enhances piston reciprocation


  • 0 : M16A1/VN/A2, G3, AUG, AK47
  • 2 : M4A1, XM177, SIG551, MC51
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