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syn01010

Junior Member
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Posts: 2
Reply with quote  #1 

I have UK version of Vector airsoftgun.

It power is 340 FPS, but it need to be 330 FPS for some reason.

Is there any recommend spring? Or it need to cut spring that already equiped in my airgun?

In addition, which spring is best for makes 390 FPS?

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leechmonger

Junior Member
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Posts: 41
Reply with quote  #2 
Drop by 10 FPS

1. Buy m90 spring.
2. Remove one tooth from the sector gear.
3. Cut the spring.
4. Lengthen the port on the cylinder.
5. Use a smaller o-ring on the piston head.
5. Adjust the hop up to reduce the FPS enough to pass chrono, then readjust the hop up.
6. Might be more solutions buy those are mine.
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