1. Unscrew and remove the trigger of the Gallo Gun from the base.
2. Place the new Mag 16 CO2 cartridge in the base of the Gallo Gun.
3. Replace the trigger on the base. Ensure the threads are properly aligned.
4. While firmly holding the tool with the cartridge in an upright position, screw in the trigger until the cartridge just contacts the puncture pin and then quickly and firmly twist it in until it stops. This will prevent loss of CO2 gas.
CO2 Cartridge Warning: Contents under pressure. Do not heat above 120ºF/49ºC or puncture. Do not inhale or discharge toward face or body. Keep cartridge and dispenser out of the reach of children.