DescriptionByrna 12 Gram CO2 Cartridges12-Gram CO2 Cartridges fire between 25 and 30 projectiles per cartridge (in rapid succession) and are used in the following Byrna Launchers:Byrna SD with 12-gram Boost adapter fittedByrna SD XLByrna LEByrna TCRNOTE: Punctured CO2 cartridges within the Byrna launchers will leak over time.It is recommended to swap out punctured CO2 cartridges and leave an un-punctured cartridge inside the Byrna launcher to avoid any compressed gas loss. The Byrna launcher will puncture and fire the first round at the same time.In the Box10x Byrna 12-Gram CO2 Cartridges with one that includes oil for basic maintenance
