Tuning The co2 cartridge is stuck in the rifle! Help?!

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Mine developed the same problem, not nearly as soon as yours but pretty early on. The seal on the end of the valve housing promptly extruded and failed, trapping the nose of the cartridge. There’s no getting around pulling the valve. If you manage to free the cartridge, the problem will either immediately repeat or the valve will leak, or both.

Get a -009 O-ring in 90 durometer (polyurethane preferably or Buna-N a close second) and pop out the bad seal and put the O-ring in its place. This rifle is super easy to disassemble. You will have it mostly apart but it’s easy to do.

I can mail you an O-ring if you want to PM me your address. 

Apply a very thin film of silicone oil on the nose of each cartridge to minimize the ongoing chance of sticking. Not even a drop. Just wipe on a thin film with the end of your finger.
 
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You can also remove the black plastic co2 spacer then screw the co2 cap cover back in and hit the cap (drop the gun pointing down to impact the co2 screw on cap) against a piece of wood or hard surface with a towel on it Slide hammer style like using a bullet puller hammer. Careful not to damage the barrel and LDC. Do it on a stool or elevated surface like stairs.

You could also try using a hair dryer to heat up that metal cylinder right where the co2 is stuck then try banging it again. No hair dryer then leave it in the hot Sun or car for a few hours.
 
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You can use a dowel and put some epoxy on the end push it down the tube onto the cart and let it sit overnight pull it out the next day. But as posted earlier you probly have a bad seal in the valve so if this does not werq you will need to tear the gun down. Co2 guns are very simple things so you should not have a problem.



OOPS!! I thought I got rid of this before I posted as Odoyle beat me to it.
 
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Yep, you are pissing in the wind if you focus solely on getting out the stuck cartridge. I’ve seen this failure multiple times. The seal is toast. I resisted disassembling one...it looked like it resumed working but in reality it had a slow leak that soon grew larger.

I don’t recall any special tools being needed. Seems like it was only metric socket head cap screws.


 
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Prevention:

1. Only tighten the end cap until you hear the cartridge pierce and pressurize the valve.

2. Apply a very thin film of silicone oil on the tip of each cartridge. Or every 2nd cartridge at least. Just don’t go crazy and soak it with lube.

Lastly, there will come a time in the not-so-distant future where the seal will fail. Be ready with an O-ring. 
 
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Good point. Earlier versions like mine don’t have the opening so I wasn’t thinking about it.

BTW I’d recommend covering it with a piece of electrical tape until you need it again. CO2 guns are an intermittently open system already and the ingress of contaminants can cause other sealing problems. Granted it’s somewhat difficult for debris to get into the valve, why give it the opportunity?
 
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I have only had that happen one time to me on a CO2. And I did what was already mentioned. I hit it as hard as I could with the palm of my hand and it popped out. The gun never did it again. But you should always either use pellgun Oil Or silicone oil on your CO2 cartridges. You need more than a thin film in my opinion. Most people put a drop or two on the tip of the cartridge Including myself. It’s not only for keeping the cartridge from sticking but it also helps keep the seals lubricated inside the gun.
 
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