02-18-2018, 12:12 AM
This might help in determining which part is out of spec.
http://www.m4carbine.net/showthread.php?...Dimensions
http://www.m4carbine.net/showthread.php?...Dimensions
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Precision Firearms upper to tight to fit lower RR lower AR15
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02-18-2018, 12:12 AM
This might help in determining which part is out of spec.
http://www.m4carbine.net/showthread.php?...Dimensions |
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