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Old May 6th, 2010, 00:31   #139
Rugger_can
 
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Join Date: Dec 2001
Location: Downtown Ottawa
Quote:
Originally Posted by glankel zebra View Post
Hey upgrading my Kraken Ak what spring should i get to increase FPS to 375 FPS
A pdi 130% or pdi 140% would probably do the trick of bringing you very close, But Im not entirely sure that the Kraken would be your best choice of platform. As other factors play into the Final FPS of an AEG, such as airseal, piston and piston head quality ect.

Cheers
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