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Zach

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Reply with quote  #1 
I have the United States version of the crb mk2-m. The FPS is around 380 and I want to get the FPS down to 350. What spring do I need to do that?
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Blueish

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Posts: 2
Reply with quote  #2 
Myself i have a stock krytac with a Prometheus MS100 NON-LINEAR SPRING
it gives me without hopup 362 FPS (2 above my FPS limit)

What i would recoment is a M95 spring, unfortionately there are not many good companies that make good M95 springs so you could choose a M90 spring to be on the safe side and changing the barrel to a tighter one if you choose so in the future, altrough krytac is stock near perfection so i wouldnt say a other barrel is a must or anything.

that said some brands will have hotter springs then others, and some go lower quite fast after being shot a couple times to wear in. (mine only dropped 1 fps and i will have to change my pfs one way or the other.

a chart:

*120% (M90)  ~280~320   F.P.S.
*130% (M95)  ~290~340   F.P.S.
*140% (M100) ~300~360   F.P.S.
*145% (M105) ~320~370   F.P.S.
*150% (M110) ~340~390   F.P.S.
*160% (M113) ~360~420   F.P.S.
*170% (M115) ~380~440   F.P.S.
*190% (M120) ~390~450   F.P.S.
*210% (M125) ~420~470   F.P.S.
*260% (M130) ~450~550   F.P.S.
*300% (M150) ~550~600   F.P.S.
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