BYRNA 12G CO2 CARTRIDGES ARE CUSTOM FIT FOR THE BYRNA HD OR SD WITH THE BYRNA BOOST 12G ADAPTOR AND THE BYRNA TCR. BYRNA 12G CO2 CARTRIDGES INCREASE SHOT CAPACITY TO 30 ROUNDS PER CARTRIDGE.

It is recommended to swap out punctured CO₂ cartridges and leave an un-punctured cartridge inside your Launcher to avoid any compressed air loss. Your Byrna Launcher  punctures and shoot the first round at the same time.

Now including 1xCO₂ cartridge with oil for simple maintenance with every 10th CO₂ cartridges used. Punctured cartridges within the Byrna HDXL or SDXL will leak over time.