Thread: Sell an MMC AR?
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Old 12-28-2012, 20:44   #19
WoodenPlank
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Join Date: May 2010
Location: NW Florida
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Quote:
Originally Posted by K. Foster View Post
Sorry to hear that. Check the bolts on your gas key. They need to be tight and staked in place.
This! Also, check your gas rings - if they are very worn or missing, that can cause this problem.
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