As with pneumatic weapons, at the moment of firing, a valve is activated via the trigger that briefly releases CO2, propelling the projectile through the barrel. Since the pressure in the CO2 cartridge fluctuates depending on the outside temperature and the fill level, compressed gas weapons are less precise than pneumatic weapons.
Shooting with non-permitted pneumatic weapons, compressed gas weapons, and spring-powered weapons is allowed both at government-approved shooting ranges and on enclosed properties, provided the owner's permission is obtained and it is ensured that the projectiles cannot leave the property. The acquisition and possession of pneumatic, spring-powered, and CO2 weapons over 7.5 Joules require a firearms ownership card. The acquisition and possession of the same under 7.5 Joules, marked with an F sign, is permitted without a license from the age of 18.