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Archived [ARCHIVED THREAD] - 9 MM Bolt Profile?
Posted: 12/2/2016 12:03:13 AM EDT
Why were the original Colt 9 MM SMG bolt lower surface profile and hammer shape so different from the traditional M16?  Were the notched hammer and non-ramped bolt meant to hang up and make it less likely to go full auto if the disconnector failed or were modified?  It seems like a standard ramp profile bolt is more reliable with after market triggers.  If anyone knows I'd be curious to learn.

Archived [ARCHIVED THREAD] - 9 MM Bolt Profile?
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