Thread: Downgrading a King Arms M4 FPS to 350ish
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Old March 19th, 2012, 21:36   #10
JonsM4
 
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Join Date: Aug 2009
Location: What's my 20?
The "Spring"

Not "Springs".

Modify S100 AEG Upgrade Spring will be around 340fps with .20 bb.
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King Arms M4A1 Colt : ICS M4 C-15 : KJW G23
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