Quote:
Originally Posted by sodacan
It would be unlikely that a no dash would not have a pinned barrel.
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^^^This. I've been told you "never say never" with S&W but an unpinned M66 no dash would be as close as it gets.
Dash numbers denote an engineering change within a model number. Not all dash numbers indicate the same change. For instance a model 686 no dash has an unpinned barrel.