crosman 2240 conversion to HPA 910fpsPART 2 Tuning
April 20th 2016 This video details tuning the valve, barrel, transfer port, springs and Bronze Trigger of my two crosman 2240 airguns.
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April 20th 2016 This video details tuning the valve, barrel, transfer port, springs and Bronze Trigger of my two crosman 2240 airguns.