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Old March 11th, 2009, 11:55   #4
Phil_Black's Avatar
Join Date: May 2005
Location: Saguenay QC
From my experience after 7 years you really need to check the seal of the cylinder assembly.

if you have a compression issue you shoud change the cylinder and piston head for a nice modify unit.

And yes a spring m100 and a spring guide is all you need to make it shoot at 350 fps.

i woud not use anything lower than a m100 or quivalent so when you use hevier bb you will remain in the desired fps range.
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