8 Gram CO2 Cylinders are only compatible with the Byrna SD / EP & HD Models.

*Not compatible with Byrna LE, SDXL, HDXL or Launchers with Byrna Boost Installed

Our box of ten 8g CO₂ cylinders are custom fit for the Byrna SD, EP and HD Launchers. Now including 1 CO₂ cylinder with oil for simple maintenance every 10 CO₂ cylinders used.

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.