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BlackHawk Firearms & Security Supply | Smith & Wesson, M&P 15 Sport II, Semi-Automatic Rifle, AR-15, 5.56 NATO, 16" Barrel, Black Finish, Black Collapsible Stock, 1 Mag, 30+1 Round, Flattop, Flip Up Rear Sight
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AR-15 pistol vs rifle: Colorado suspect allegedly used a Ruger AR-556 pistol. Here's how it differs from an AR-15-style rifle | CNN
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Springfield Armory Saint AR15 5.56mm NATO 16in Black Semi Automatic Modern Sporting Rifle - 30+1 Rounds | Sportsman's Warehouse
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