THIS SPRING IS FAR TOO STRONG FOR VARIABLE-PUMP AND CO2 MODELS AND WILL DAMAGE THE HAMMER PIN AND VALVE STEM

SPRING INCLUDED ONLY, OTHER PARTS SHOWN FOR REFERENCE

This spring fits Discovery, Maximus and 22XX models converted to PCP. It works well in the 2400-2600 PSI range without a power adjuster and 3300 PSI with an adjuster to preload it.

The more hammer-spring tension you have the harder it becomes to pull the bolt back. It works the smoothest if you hook your finger around the handle close to the breech and pull back in one quick motion. More hammer-spring tension also increases trigger pull. We have custom trigger groups, triggers, trigger springs and sears listed that reduce pull, increase comfort and accuracy. For the lightest possible pull and best overall performance use the minimum amount of hammer-spring tension needed to get the power level you need. If going for maximum power use only enough tension for the power level to peak. Variable-pump and CO2 models tend to lose power if the hammer spring is too strong because it will cause the valve-stem to cycle too fast for the valve to empty effectively. This can also happen with PCP and HPA if running in lower pressure ranges.