8 Gram CO2 Cylinders are only compatible with the Byrna SD.

*Not compatible with Byrna SD Launchers with Byrna Boost Installed

Our box of ten 8g CO₂ cylinders are custom fit for the Byrna SD Launcher. Now including 1 CO₂ cylinder with oil for simple maintenance every 10 CO₂ cylinders used. Each cylinder (new) will be good for 15-20 rounds at full speed.

It is recommended to keep an unpunctured cylinder in your launcher at all times for self-defense purposes. Punctured cylinders within your Byrna Launcher will leak over time.