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FALCON Oil Groove Piston Ring for KJW M4 GBB Series (Part No.9)


FALCON Oil Groove Piston Ring (Part No.9)
High Density Oil Industrial used Rubber (Hardness 70 Degrees)
Essential part for Your Airsoft Gas Blow Back Rifle
Double O ring design, reduce the loss of lubricant, increase the air tightness.
Suitable for KJ Work M4 Series Gas Blow Back Airsoft GBB Rifle

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  • Model: F80
  • Manufactured by: Falcon