Byrna SD – Compatible CO2 Cylinders

Summary

The Byrna SD is specifically designed to operate with 8g CO2 cylinders for reliable and consistent performance. Using the correct cylinder size is essential for proper function and safety.

Key Takeaways

• The Byrna SD uses 8g CO2 cylinders only
• 12g CO2 cylinders are not compatible
• 8g CO2 cylinders are less common than 12g
• Byrna-branded CO2 is recommended for best performance
• Some third-party cylinders may fail to puncture or seal properly

Overview

The Byrna SD is engineered around the use of 8g CO2 cylinders, which provide the precise level of pressure required for operation. This configuration supports the launcher’s compact design while ensuring consistent shot performance.

Because 8g CO2 cylinders are less widely available than 12g options, Byrna recommends using its own branded cylinders . These are designed for proper fit, reliable puncture, and consistent pressurization. Some third-party cylinders may not meet these standards, which can lead to reduced performance or failure to operate.

How It Works

1. Insert an 8g CO2 cylinder into the launcher
2. Secure it in place with the cap
3. Pulling the trigger punctures the cylinder
4. The system pressurizes, preparing the launcher for firing

Compatibility

Compatible:

• Standard 8g CO2 cylinders

Recommended:

• Byrna 8g CO2 cylinders

Not Compatible:

• 12g CO2 cylinders
• Any incorrect or mismatched sizes

Use Cases

• Training and drills
• Practice shooting
• Personal self-defense

Important Considerations

• Always use 8g CO2 cylinders only
• Do not attempt to use 12g cylinders 
• Verify proper installation before use
• Replace empty cylinders promptly
• Be aware that some third-party brands may not puncture reliably

FAQs

What type of CO2 does the Byrna SD use?
8g CO2 cylinders

Can I use 12g CO2 cylinders?
No, they are not compatible

Are all 8g CO2 brands the same?
No, fit and puncture reliability can vary

Why use Byrna CO2 cylinders?
They are designed for consistent performance and proper fit

Are 8g CO2 cylinders common?
They are less common than 12g cylinders