Safety Check: Keeping AR Calibers Separate

By Austin R

It’s almost become commonplace to hear a story about a 300 Blackout round finding its way into a 5.56 AR pattern rifle (or vise versa). It seems like this stories have become almost routine to hear among AR enthusiasts, a group that often owns both calibers. Now as most of you already know, this is […]

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Source:: The Firearm Blog