Switzerland hasn't had a mass shooting since 2001, when a man stormed the local parliament in Zug, killing 14 people and then himself.
The country has about 2 million privately owned guns in a nation of 8.3 million people. In 2016, the country had 47 homicides with firearms. The country's overall murder rate is near zero.
The National Rifle Association often points to Switzerland to argue that more rules on gun ownership aren't necessary. In 2016, the NRA said on its blog that the European country had one of the lowest murder rates in the world while still having millions of privately owned guns and a few hunting weapons that don't even require a permit.
But the Swiss have some specific rules and regulations for gun use.