Huben GK1 - Trigger adjustment
Affiliated links: GK1 V3+ .25 Caliber: https://www.hubenairguns.shop/collect... GK1 V3+ .22 Caliber: https://www.hubenairguns.shop/collect... GK1 V3 .177 Caliber: https://www.hubenairguns.shop/collect... How to enable power adjustment of GK1 V1 and V3: • Unlock the Huben GK1! V1-V3
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Huben GK1 - Disassembly
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Huben GK1 - Power adjustment
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