We produce mechanisms for wood and tube spearguns with double roller reverse system. The numerous configurations on request include in some models the short trigger for hilt in wood and the system of gearing down Roll (patented), which allows to have a sensitivity on the trigger unthinkable, the trigger weight does not vary with increasing load (maximum operating force of 1,500 kg of pulling the trigger of 300 kg !!!) with virtually unlimited endurance.

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