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9/22/2017 12:11:25 AM
Posted: 10/4/2005 5:16:21 AM EDT
Does CMMG have M4 feedramps and if so, how do they cut them. I thought Colt had the patent.
Link Posted: 10/4/2005 9:36:27 AM EDT
The M4 feedramp profile is not, and never has been, patented. Not by Colt, not by anybody.
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