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Posted: 11/8/2008 11:48:27 AM EDT
I have a DPMS MK12 Upper and a MEGA Machine Shop Lower. The DPMS fits very tightly and the front push pin area on the front of the Mega lower rubs when collapsed open. Is that because the Mega lower mil-spec and the DPMS is not? Or am I confused, maybe it doesn't matter that is it is mil-spec. Does it matter when it is collapsed open that it rubs, or will that become a problem? I posted pic's there not great
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