9mm AR upper

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Every Reason a 9mm AR Upper Is a Solid Bet for a Build

You can build an AR or an ARP in 5.56 like everyone else does. Or you can choose a 9mm AR upper for your build and make something unique. There are plenty of good reasons to do that. Here are just a few. Cheap Ammo The fact of the matter is that 9mm ammo is […]

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