CowCow AAP01 Hammer Spring

These springs are designed to increase the cycling speed and responsiveness of your blowback action. By using a higher tension spring, you get a snappier trigger reset and a more consistent, forceful kick compared to the stock spring.

The 140% spring offers a moderate increase in tension, which is ideal for general performance improvements without putting excessive strain on your internal components. The 200% spring provides a much stiffer pull, intended for setups that require maximum cycling force, though it will increase wear on your hammer assembly over time.

Yes, these springs are designed to be compatible with both the Action Army AAP01 and standard G Series gas blowback pistols. Always double-check your specific model's internal configuration before installation.

While you don't need a full workshop, you should be comfortable disassembling your pistol's lower frame and hammer assembly. If you aren't familiar with airsoft internals, we recommend watching a tutorial or having a professional install them to avoid damaging the delicate sear or hammer components.

Yes, a stiffer hammer spring requires more force to cock the hammer, which can slightly reduce your gas efficiency per magazine. Because the valve knocker is being struck with more force, you may notice a marginal decrease in shots per fill, but the trade-off is a more consistent and responsive firing cycle.