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Old October 21st, 2013, 22:10   #3
unknownvariable
 
Join Date: Jun 2011
Location: Mississauga
They are typically M140 springs.

You should test it. Even with the M140 they usually don't shoot 460fps (with stock parts). More like 430ish. An M120 would put you close to 400 (with everything else stock).
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