Hammershot Spring Spacer for the FPS
thingiverse
Gets you to 80 FPS given the correct blaster configuration. An un-restricted flow-path and a good seal between cylinder and piston chamber is what you will require to get the most out of this guy. The nice thing about this particular spacer, is that it captures the spring rather than just giving the coil something to rest on. I had issues where the spring would work its way over the spacer after a few rounds, negating the effect and damaging the coils. [44sunsets](https://www.thingiverse.com/44sunsets/about) points out that it also fits on grey-triggered Doublestrikes.
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