Guns per 100 residents: 45.7
The culture: Switzerland, which requires many of its citizens to own automatic rifles, but has one of the world's lowest violent crime rates, is a favorite example of U.S. gun-rights advocates. But Switzerland's attitude toward gun ownership is a far cry from that of the United States.
All Swiss men are required to undergo military training, and between the ages of 21 and 32, they are considered to be front-line troops and issued M-57 assault rifles and 24 rounds of ammunition to keep in their home. Once discharged, they are allowed to keep the weapon, or if they prefer, trade it in for a bolt rifle. Women aren't required to own guns, but it's strongly encouraged through government-sponsored training programs.
In 2001, there were about 600,000 automatic rifles and 500,000 pistols kept in Swiss homes. There are few restrictions on the buying of weapons, and the government even sells off its surplus to citizens when new models are purchased. Many Swiss belong to shooting clubs, and marksmanship competitions are popular activities. A number of cantons have laws against carrying guns without a permit, but it's not unusual to see off-duty reservists toting their assault rifles in public.
The country did a bit of soul-searching in 2001 after a disgruntled Swiss citizen opened fire in a regional parliament building, killing 14 people, but the Swiss don't seem likely to part with their firearms any time soon. In most years, gun crime rates are so low that statistics aren't even kept.