Byrna 88G CO2 Cartridges

The Byrna 88G CO2 Cartridges are a box of two 88g CO₂ cartridges that are a perfect fit for the Byrna Mission-4. Each cartridge (new) will be good for approximately 60 rounds (or 3x Mission-4 19-round magazines) at full speed. Punctured cartridges within the Mission-4 CO₂ buttstock will leak over time. It is recommended to swap out punctured CO₂ cartridges and leave an un-punctured cartridge inside the Mission-4 CO₂ buttstock to avoid any compressed gas loss.