What is the 0.157 inch shim used for?
PolarStar Gearbox Shim Set for Cylinder Conversion Kits
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Open Dec 03, 2025 - 12:08 PM
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Dec 03, 2025 - 12:08 PM
The 0.157 inch gearbox shim is best suited for VFC and Marui brand gearboxes. This precise sizing helps eliminate cylinder movement and maintains consistent air seal and BB seating, which are crucial for optimal airsoft performance.
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PolarStar Gearbox Shim Set for Cylinder Conversion Kits
PolarStar Gearbox Shim Set for Cylinder Conversion Kits These sets of precision shims are used to secure an HPA cylinder within the gearbox shell to prevent unwanted movement. Since the pins in a gearbox shell can vary in size depending on the manufacturer, we have to make the matching holes in our ...
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