The gun didn't end up being an AR-15 it was a Sig Sauer MCX. Still semi-automatc though so that does apply. The shooter worked for a British security company that was commonly contracted by the US government. Sources say it was possible that he could have access to high grade military equipment. [spoiler]some sources. http://www.zerohedge.com/news/2016-06-13/17-facts-about-orlando-shooter-every-american-should-know http://www.infowars.com/orlando-killer-worked-for-company-transporting-illegal-immigrants-inside-us-was-interviewed-by-fbi-3-times/ https://www.washingtonpost.com/news/checkpoint/wp/2016/06/14/the-gun-the-orlando-shooter-used-was-not-an-ar-15-that-doesnt-change-much/ http://www.politifact.com/florida/statements/2016/jun/14/alan-grayson/orlando-democrat-alan-grayson-700-rounds-minute/ [/spoiler]