Byrna 8 Gram CO2 Cartridges – 10 Cartridges

The Byrna 8 Gram CO2 Cartridges – 10 Cartridges are custom fit for the Byrna SD and HD Launchers. The 10 pack is now including 1 CO₂ cartridge with oil for simple maintenance every 10 CO₂ cartridges used (9 standard CO2 cartridges). Each cartridge (new) will be good for 15-20 rounds (4 mags in a 5 round magazine) at full speed. Punctured cartridges within the Byrna HD will leak over time. It is recommended to swap out punctured CO₂ cartridges and leave an un-punctured cartridge inside the Byrna HD to avoid any compressed air loss. The Byrna HD will puncture and fire the first round at the same time.