automag classic pro freezing up

[Cruiser]

Hi,
I'm new to this gun, and havent played in a while. Its a chrome automag classic pro. I got it in the dead of winter and when I tried it with co2 it started to freeze up. I thought, its like 20 out so I should expect that. I was hoping to get out and use it in the spring but had some medical issues kept me from doing anything. A couple friends are talking about going in a couple weeks, so I pulled out the gun scewed on a full co2 and loaded paint and went out back. after the first 20-30 shots it seems to have a little more fog out the barrel, then you can hear the action slow down and it starts shooting frost out. Is there something easy to do to fix this? should I be using ca? If I stop using it and wait a minute or two I can get another 10 or so rounds out before it freezes up again.
Any help for a newbie would be appreciated,,
Thanks,
Steve C

[Earthy]

Two things you can try are to get an anti-siphon tube put in your tanks, and use an expansion chamber or regulator to help block and liquid CO2. I used a PPS Stabilizer with my classic valve along with an anti-siphon tank and I never had a freezing problem.

[flyingpootang]

If compressed air is available buy a HP screw in tank off of ebay for 35-55 dollars.

[Asym]

First off in a classic valve you should be using at least 500PSI, most recomend 600PSI. The classic regulates the air to around 400PSI, so you could theoreticaly use 400PSI but lower input pressure does affect your recharge rate. To prevent starving a gun most recomend your input is around 200PSI higher so there is no drop off.

That being said, you should now go learn about CO2, check out that first image link which shows you the phase change temps of CO2 relevant to temperature. CO2 is stored as a liquid, when it phase changes to gas it does get cooler. During the winter when it is cold the tank almost never warms up so your pressure keeps droping and it feeds more liquid. Some people have tried to use hand warmers near the tank which works fine, but the CO2 in the lines and AIR valve will cool and turn back to liquid.

I used CO2 for years, using either a expansion chamber or palmers stabilizer regulating the CO2 below its liquid form, just use that picture to show you what pressures you can get at what temps. I never played during the winter though. If your gun does freeze up just re-oil the on/off o-ring and it because freezing those o-rings makes them swell and dry out.

[MANN]

try using a remote line. I know they are annoying, but it gives plenty of room for the co2 to expand so it goes in your gun as a gas not a liquid.