Thread: Bore-Up
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Old October 6th, 2010, 13:53   #9
noypi
 
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Join Date: Jun 2007
Location: Oakville
Apart from what was mentioned. Also check if there is some play/ gap between the butt plate and the gearbox, this can affect the seal of the air nozzle to the hop up which cause a significant drop in FPS.
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