Keep your launcher ready. This is a 10-pack of genuine Byrna 12-gram CO2 cylinders — the compressed-gas propellant that powers the Byrna LE launcher. CO2 is a consumable: every cylinder is good for a set number of shots, so keeping spares on hand means your launcher is always ready when it matters.
Compatibility — check before you buy. Byrna's 12-gram cylinders are custom-fit for the Byrna LE launcher — or any launcher fitted with the Byrna Boost 12g Adapter. They are not compatible with the standard Byrna SD (which uses 8-gram CO2). The Byrna Mission 4 rifle uses its own 88-gram cylinder. If you own a Byrna LE, this is your CO2. If you own a Byrna SD, you need the 8-gram cylinders instead (or the Byrna Boost adapter).
What's in the pack: ten 12-gram CO2 cylinders, including one cylinder pre-loaded with oil for simple launcher maintenance.
Honest notes. Keep an un-punctured cylinder in your launcher for self-defense readiness — once a cylinder is punctured, it will slowly leak down over time, so a punctured cylinder is for use, not storage. Store cylinders cool and away from children. CO2 cartridges are pressurized and are subject to airline/TSA rules — review those before traveling.
Best for Byrna LE owners (and TCR / XL owners) who want a ready supply of propellant. Free shipping on orders over $100; 30-day satisfaction guarantee.
SPECS
Type | 12-gram compressed CO2 cylinder (launcher propellant)
Count | 10-pack (includes 1 oiled cylinder for maintenance)
Compatible launchers | Byrna **LE**, TCR, CL-XL, SDXL, HDXL — or any launcher with the Byrna Boost 12g Adapter
NOT compatible | Byrna SD, CL, EP, HD (SD uses 8-gram); Byrna Mission 4 (uses 88-gram)
