Hi Larry and welcome. NAA cap and ball revolvers often misfire due to shipping oil clogging the small nipple flash holes, preventing the flash from reaching the powder. Other common causes include using improper cap sizes (too loose), weak mainsprings, or accumulated fouling blocking the flash channel.
"Pop" Caps: Before loading, fire several caps on an empty cylinder to clear any oil or debris from the flash hole.
Use Proper Tools: Ensure nipples are clean using a nipple pick or pipe cleaner.
Anti-Seize: Apply anti-seize to nipple threads to ensure they are easy to remove for cleaning.
Contact NAA: If misfires persist after troubleshooting, contact North American Arms for resolution at 1 (800) 821-5783 Cheers and stay safe!

Contact North American Arms directly @ 1.800.821.5783 They should be able to help you. Good luck 👍🏻‼️

1. Address the Rear: Proper Cap Fit
The most frequent cause of chain fires in NAA Companion revolvers is flash from the percussion cap igniting adjacent chambers.
Use Proper Caps: NAA recommends using Remington #11 caps. Other brands may be too loose.
Ensure Snug Fit: Caps must fit tightly on the nipples. If they are loose, they will fall off or allow flash to bypass.
Pinch the Caps: If your caps are too loose, gently pinch them with needle-nose pliers to make them slightly oval before seating them.
Seat Fully: Ensure the cap is seated completely on the nipple.
2. Address the Front: Sealing the Chambers
If the balls are too small or the chambers are not sealed, fire can jump from the ignited chamber to the next.
Use Proper Ball Size: Ensure you are using the correct diameter projectile (typically .22 caliber) that requires force to seat, ensuring a tight seal.
Use Grease/Wad: Apply a stiff lubricant (like Crisco, Bore Butter, or specialized black powder grease) over the front of each chamber after loading to seal the ball.
Check for Burrs: Inspect the cylinder chambers for rough edges or "burrs" that might prevent a tight seal.
3. Clean and Maintain
Remove Factory Oil: New guns are often heavily oiled. This oil can clog the nipple flash holes and prevent proper ignition. Clean the cylinder, nipples, and flash channels thoroughly with solvent before firing.
Check for Loose Nipples: Ensure the nipples are screwed in tight.
4. Check for Mechanical Issues
Inspect Cylinder