Byrna Mission 4 Maintenance Guide

Summary

The Byrna Mission 4 is designed to be a low-maintenance launcher that requires only basic lubrication and periodic cleaning to maintain reliable performance. Regular oiling of the CO2 system and occasional barrel cleaning help extend component life and ensure consistent operation.

Key Takeaways

• Maintenance is limited to simple lubrication and cleaning.
• The CO2 adapter and O-rings should be lubricated regularly.
• Use only mineral oil for maintenance.
• Apply a drop of oil directly to the CO2 cylinder before installation.
• The barrel can be removed for cleaning.
• A barrel brush is included for routine maintenance.

Overview

The Byrna Mission 4 is built for reliability with minimal maintenance requirements. Proper care focuses primarily on keeping the CO2 system lubricated and the barrel free of residue.

The CO2 adapter and internal O-rings are important components that maintain an airtight seal and allow consistent gas flow. Regular application of mineral oil helps keep these seals in good condition and can reduce the likelihood of leaks. Adding a drop of oil to the CO2 cylinder before installation helps distribute lubricant throughout the system during operation.

The barrel should be cleaned periodically, especially after extended use or whenever residue buildup is noticed. A clean barrel helps maintain consistent performance and accuracy.

Maintenance Procedure

Lubricating the CO2 System

1. Apply a small amount of mineral oil to the CO2 adapter.
2. Lightly lubricate the O-rings.
3. Place one drop of mineral oil on the tip of the CO2 cylinder.
4. Install the CO2 cylinder.
5. Fire several shots to circulate the oil throughout the launcher.

Cleaning the Barrel

1. Remove the barrel from the launcher.
2. Use the included barrel brush to remove any residue or buildup.
3. Inspect the barrel for cleanliness.
4. Reinstall the barrel securely.

Important Considerations

• Use mineral oil only.
• Avoid excessive lubrication.
• Regular oiling (every 3-6 months) helps protect seals and reduce leaks.
• Clean the barrel based on usage and residue buildup.
• Always handle the launcher safely during maintenance.
• The Byrna Mission 4 is a less-lethal device and should be handled responsibly.

Frequently Asked Questions

How do I maintain the Byrna Mission 4?

Regularly lubricate the CO2 adapter and O-rings with mineral oil and clean the barrel as needed.

What type of oil should be used?

Use mineral oil only.

Where should oil be applied?

Apply oil to the CO2 adapter, O-rings, and place a drop on the CO2 cylinder before installation.

How often should the barrel be cleaned?

Clean the barrel whenever residue buildup is present or as needed based on usage.

Does the Mission 4 include cleaning tools?

Yes. A barrel cleaning brush is included.

Can the barrel be removed for cleaning?

Yes. The barrel can be removed and cleaned as part of routine maintenance.