Quote:
Originally Posted by snm8510
it's 1:8 5r still.. looks like most of the newer rifles being released are getting it
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Where are you finding this info, because as jkasch pointed out, the Magpul MOE SL does not list a twist rate, and it shows it is 4140 so it is a different barrel than what is on the MOE Mid.
Google isn't turning up anything other than S&W website, which is very short on specs.