Quote:
Originally Posted by Amos
A gun with a 450ish fps spring, and systema FTK kit wont be enough?
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If that's the case, then it's even MORE important that you have a higher air volume in your cylinder. Systema Expert FTKs (450+fps) come with bore-up cylinder kits. To be honest, I don't know what the upper limit of existing bore-up cylinders are - as far as I know, they're limited to 650mm, but talk to an custom inner barrel manufacturer that's made them specifically for airsoft and see what their experiences are. If you want to go 690+mm, there may be certain physical limitations that many people aren't aware of because hardly anybody's gone to such extreme lengths. Lead the way, ranger.
