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Remove the stock from the receiver by the screw on the underside of the stock. Next, there should be a cap (usually falls off) just below the probe endcap. That endcap covers a hole that fits an Allen screw. That Allen screw adjusts the hammer spring tension. Turning the screw in will increase the tension, thus increasing the power, and turning the screw out will reduce the tension, thus reducing the power.

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13y ago

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