The CO2 cartridge 12g is intended for air rifles and air pistols with CO2 drive of all manufacturers (ASG, Crosman, Cybergun, Umarex etc.). The cartridge is screwed onto a spike in the gun that pierces the throat. The number of shots depends on the model of the air gun, the cartridge is disposable and cannot be refilled. These are not any "noname" cartridges containing mostly half the filling, but quality branded cartridges produced in Europe, which really contain 12g of CO2 gas!
We also have the cartridge in a more convenient package 10, 20, 50, 100 or 200 pieces. The prices of the cartridges in individual packages are more favorable:
It is necessary to shoot the cartridge and not leave it under unnecessary pressure in the weapon. So, if you know that you will not be shooting from the air rifle for a long time, unscrew the cartridge so as not to unnecessarily reduce the life of the sealing rings.