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AR-15 assault rifle, also known as the M4 Carbine chambered in caliber 5.56mm (.223 Stock Photo - Alamy
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With AR-15s, Mass Shooters Attack With the Rifle Firepower Typically Used by Infantry Troops - The New York Times
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EMG SAI Licensed GRY SBR AR-15 / M4 AEG Training Rifle w/ i5 Gearbox (Configuration: CQB / Grey ITAR Furniture), Airsoft Guns, Airsoft Electric Rifles - Evike.com Airsoft Superstore
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