1. MODIFY
  2. UPGRADE PARTS
  3. AEG INTERNAL PARTS
  4. Cylinder/ Cylinder Set
  5. Bore-Up
  • Bore-Up Cylinder Set for MP5-A4/A5/SD5/SD6 - Modify Airsoft parts
    Array

SPECIFICATION

Material Bore-Up Piston Head: Polycarbonate Outer Diameter Bore-Up Air Seal Nozzle: POM
Material Bore-Up Cylinder Head: Aluminum alloy Material Bore-Up Cylinder: Brass

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