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Old June 15th, 2010, 13:31   #1
Novawarrior1
 
Join Date: Jun 2009
SRC (gen 3) M4 SD or KWA M4 s-system

I'm just wondering which brand has better quality/performance/durability between these brands. I know src uses a customized version 2 gearbox. Does KWA use a version 3 gearbox?
Thanks
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