Figures from the army show nearly 100 weapons go missing every year.
Last year there were 96 weapons unaccounted for – that includes 82 assault rifles. The others were handguns.
In the vast majority of cases the owners have reported them as stolen.
But around 20 a year are found. Normally by tenants moving into a new home.
On average every year, one is destroyed in a house fire.
The army says it’s working on better training to cut back on the number of guns going missing.
Your pictures of the eclipse
You sent in your pictures of the eclipse - many thanks
Copernicus reports hottest summer ever measured
Switzerland is in the grip of a level 3 heat alert, with Geneva heading for temperatures of up to 36°C on Friday.
Tough new banking rules possible
The Federal Council has launched consultations on new banking rules that could withhold or claw back bonuses from top banking executives.
Speed crackdown affects all of Switzerland
The Federal Council has tightened the rules for imposing 30 km/h zones on city streets, requiring cantons to prove that a slowdown will not push traffic into residential neighbourhoods
Back to school concern over heat
Vaud is preparing to map every school building in the canton to identify the classrooms most vulnerable to extreme heat
Eye warning for eclipse watchers
Anyone who watched Wednesday's solar eclipse without proper glasses should watch for signs of retinal damage, doctors are warning
