All the cylinders up to M110 are the same (aside from colour). M130+ and they're different
Between them, there's an additional port cut into the cylinder to allow the piston to get up to speed before the compression starts.
That said...I've thrown all sorts of springs into the same cylinder body. All it's changed is the FPS, the shot cycle/etc didn't get messed up. That said some spring/cylinder combos might be less than optimal.
***should note that these comments all have to do with 2007/2008 PTW stuff
Last edited by m102404; July 11th, 2012 at 15:55..
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