Compatible Only with Byrna Mission-4: 88 gram CO2 cylinders are designed exclusively for use with the Byrna Mission-4 rifle. Performance: Each new 88g CO2 cylinder provides approximately: 60 shots per cylinder Equivalent to 3 full Mission-4 magazines (19 rounds each) Leak Warning: Once punctured, CO2 cartridges installed in the Mission-4 buttstock will begin to leak over time. Storage Recommendation: Always replace punctured cylinders after use Store an unpunctured cylinder in the CO2 buttstock to prevent compressed gas loss Note on Packaging: Actual brand and packaging of 88g CO2 cylinders may vary based on availability.
