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ICS M4 Gear Grinding Again!
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July 4th, 2010, 09:46
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voorhees -FWA-
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Join Date: Oct 2008
Location: Estevan, Saskatchewan
take the upper off - place your finger on the sector gear, apply some pressure (resistance) and fire it and see if it spins... it could be the pressed gear on the bevel gear that contacts the spur gear...
voorhees -FWA-
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