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Old November 15th, 2012, 05:09   #13
Scrivah's Avatar
Join Date: Oct 2012
Location: London, ON
Any luck? My buddy and I had this problem when we put his KA m4 back together last night. It was normal going from safe to semi and then was tough going from semi to full auto. The problem occured when he tightened down the screws that hold the grip to the gearbox. Try to move the selector without the grip screwed on and see if it moves freely. If that works its a matter of alignment.
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