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Old January 5, 2013, 04:40 PM   #4
chris in va
Senior Member
 
Join Date: December 26, 2004
Location: Louisville KY
Posts: 12,530
Quote:
I heard or read somewhere the dust covers were said to be there to keep the feed lips from the pressure of the rounds pushing back up. Don't know if there is any truth to it.
It's actually part of the instruction manual that comes with Pmags.
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