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Message: <blockquote data-quote="henschman" data-source="post: 2609853" data-attributes="member: 4235"><p>FYI, I got my M&P 10 to run reliably on 7.62 this weekend.  Drilling the gas port out to 5/64" did the trick.  That was the smallest bit I had that wouldn't fit in the port.  It now runs great on several different types of surplus 7.62.  Now that I can actually somewhat trust this thing, I can finally justify sinking some more money into it... I will be following in your footsteps with a free float handguard over low-pro gas block setup, among other things.</p></blockquote><p></p>