Why Is My Byrna Launcher Not Firing?

Summary

If a Byrna launcher is not firing, the issue is most commonly related to the CO2 cylinder, trigger operation, or CO2 installation. Performing a few basic troubleshooting steps can often identify and resolve the problem.

Key Takeaways

Fully depress the trigger when firing
Verify a new CO2 cylinder is installed
Ensure the CO2 cylinder is installed correctly
Empty or leaked CO2 cylinders will prevent firing
The launcher must be properly pressurized to operate
Improper CO2 installation is a common cause of firing issues

Overview

Byrna launchers rely on compressed CO2 to propel projectiles. When a launcher does not fire, the issue is typically related to insufficient CO2 pressure or improper operation.

The most common causes include a depleted CO2 cylinder, a CO2 cylinder that did not puncture correctly, incomplete trigger pull, or improper installation. In many cases, replacing the CO2 cylinder and verifying proper setup will restore normal operation.

How It Works

Byrna launchers use compressed CO2 as their power source.

When the trigger is fully depressed:

The CO2 cylinder is punctured.
The launcher becomes pressurized.
CO2 is released through the system.
A projectile is launched.

If the launcher does not have adequate CO2 pressure, it may fail to fire.

Use Cases

This guide may help when:

The launcher does not fire after installing a new CO2 cylinder
The trigger is pulled but nothing happens
The launcher suddenly stops firing
A newly installed CO2 cylinder does not appear to puncture
The launcher has been stored for an extended period

Step-by-Step Troubleshooting

Step 1: Fully Depress the Trigger

Ensure the trigger is pulled completely.

A partial trigger pull may prevent the launcher from puncturing the CO2 cylinder or operating correctly.

Step 2: Check the CO2 Cylinder

Verify that:

The CO2 cylinder is new or has sufficient pressure
The cylinder has not leaked
The cylinder is the correct size for the launcher model

If there is any doubt, install a fresh CO2 cylinder.

Step 3: Verify CO2 Installation

Ensure the CO2 cylinder is seated correctly
Confirm the CO2 cap is secure
Tighten the cap until snug
Do not overtighten the cap

Step 4: Verify the CO2 Cylinder Has Punctured

After installation:

Fully depress the trigger
Confirm the launcher becomes pressurized
If the launcher does not pressurize, remove and inspect the CO2 cylinder

Step 5: Inspect for CO2 Loss

If the launcher was previously working and suddenly stopped:

Check for signs of a CO2 leak
Replace the cylinder if pressure has been lost
Inspect the launcher for visible damage

Important Considerations

Always use a fresh CO2 cylinder when troubleshooting.
Empty or leaked CO2 cylinders will prevent the launcher from firing.
The trigger must be fully depressed during operation.
Do not overtighten the CO2 cap.
Use the correct CO2 size for the specific launcher model.
Byrna does not recommend Crosman CO2 cylinders due to inconsistent puncturing performance.

FAQs

The most common causes are a depleted CO2 cylinder, improper CO2 installation, or an incomplete trigger pull.

Does the trigger puncture the CO2 cylinder?

Yes. Fully depressing the trigger punctures the CO2 cylinder and pressurizes the launcher.

Why won't my new CO2 cylinder work?

The cylinder may not be installed correctly, may not have punctured properly, or could be defective.

What happens if my CO2 cylinder leaks?

A leaking CO2 cylinder will lose pressure, preventing the launcher from firing properly.

Can an empty CO2 cylinder stop my Byrna from firing?

Yes. Without sufficient CO2 pressure, the launcher cannot operate.

Should I replace the CO2 cylinder if my Byrna won't fire?

Yes. Installing a fresh CO2 cylinder is one of the first troubleshooting steps.

What should I do if my Byrna still won't fire after replacing the CO2 cylinder?

Complete the remaining troubleshooting steps and contact Byrna Support if the issue persists.