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Complete O-Ring Set for Polarstar Jack HPA Engines

[68277 / PS-SET-OR-SJ-MP7]
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New to airsoft? Here are some safety tips for airsoft guns that we recommend following.

Before you go flaunting your new polarstar engine, it'd be a smart idea to get a couple sets of these OEM o-rings. As they're OEM, they are the exact needed size for your fusion engines multiple seals.


  • Compete O-Ring set
  • Factory replacement components
  • High grade rubber
  • Compatible with all Polarstar Jacks except the MP7 variant

Manufacturer: PolarStar
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