風傳媒川普遭暗殺未遂》射殺川普的AR-15，是一款什麼樣的槍？
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<![CDATA[<img src="https://image.cache.storm.mg/styles/smg-150x150-fp/s3/media/image/2016/08/07/20160807-110755_U720_M183022_dc59.jpg?Fi3bimF1HjJ2hMZU...