The 20-year-old man who shot Donald Trump on Saturday night at a rally in Butler, Pennsylvania, used a weapon emblematic of the gun debate in the United States: an AR-15 semi-automatic rifle.
It is possible to buy this type of weapon from the age of 18 in the country. Resembling weapons of war, these rifles are easier to obtain than a pistol. These AR-15s, as well as their imitations, are also very often used in mass shootings, an American scourge that has cost the lives of countless civilians.