padraigthesniper Posted May 3, 2012 Share Posted May 3, 2012 just need to know what spring would be best for exactly 450 fps or a little below as my fps limit is 450 it will be installed with a tightbore Link to comment Share on other sites More sharing options...
Supporters Airsoft-Ed Posted May 3, 2012 Supporters Share Posted May 3, 2012 just need to know what spring would be best for exactly 450 fps or a little below as my fps limit is 450 it will be installed with a tightbore M130s are rated at about 430fps and M140s are rated around 460... I'd say M130 + the tight bore ought to up it to around 450, getting it exact will be next to impossible though. Link to comment Share on other sites More sharing options...
padraigthesniper Posted May 3, 2012 Author Share Posted May 3, 2012 ok i'll use a m130 then thanks (: Link to comment Share on other sites More sharing options...
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