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Discussion Starter #1 (Edited)
I know there are many threads on the web about how to remove barrel nuts from CA model P22's, but I thought I would share my barrel nut experience.

Even though I live in Indiana (free state) the store I purchased my P22 from only had the CA model in the Angel Blue color. I knew that the only real difference was that the barrel nut was glued on, and did not have the wrench slots so it couldn't be removed (in their dreams!!).

My wife really wanted this pistol so, I purchased it.



I must admit this is really a nice looking gun.

I have read that you may need to apply heat, or dip the end of the barrel in some sort of release agent.

I thought I would try just unscrewing it first and see what happens. I wrapped a piece of leather around the nut and clamped down with a pair of vise grips and starting applying a bit of pressure. At the point where I felt that I was putting as much pressure as I was comfortable with the nut started turning. Victory! I might have just been lucky and the factory only applied a small of "glue".

I then removed the nut from the barrel and cleaned out the barrel threads and the nut thread using a small brass cleaning brush. There was some sort of dried of glue that the brush removed.

I then put the nut in my vise and filed two flats on the nut so a 7/16" would slide on. I just used a standard flat file and took my time, filing a bit at a time on opposite sides of the nut until the wrench just did slide on.



Since I will be attaching a suppressor to this gun I ordered the Barrel adaptor from Walther (it is only $20 right now).



I am pleased how this turned out and removing and reinstalling the nut now is easy.

If for some reason I ever need to return this gun to Walther for service I will make sure their threaded barrel adapter is on the barrel.

I hope this helps a bit for anyone thinking of doing this little project.

Ron
 

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I just got the P22 CA. I took a butane culinary torch, turned the flame down and held the inner part of the flame on the top of the barrel nut for 40 seconds. I took a locking plier with minimal pressure, turned counter clockwise, and it broke lose without a problem. I cleaned out the glue residue, and it's good to go. I have a suppressor adapter and there is a target barrel upgrade on the way.
 

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My wife really wanted this pistol so, I purchased it.



I must admit this is really a nice looking gun.

Ron

What's the two letter date code on the barrel on the ejection port side? BK?

I noticed the slide has an "F" stamped into the slide by the safety lever, and no red dot. Seems the latest models I've seen (with BK date codes, non-CA models) don't have any "F" or "S" stamped on the slide, but just a big red dot that shows when the safety lever is up (in the fire position).

And of course, the California models have the "CA" engraved after P22 on the left side of the slide.
 

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The only thing I would caution here is to not file the flats too large so that it might be possible for the front of the slide to catch on the edge of the filed area. I think that is why the factory nuts are designed as they are with regard to the narrow cutout for the wrench lands.. 1917
 

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Discussion Starter #7
What's the two letter date code on the barrel on the ejection port side? BK?

I noticed the slide has an "F" stamped into the slide by the safety lever, and no red dot. Seems the latest models I've seen (with BK date codes, non-CA models) don't have any "F" or "S" stamped on the slide, but just a big red dot that shows when the safety lever is up (in the fire position).

And of course, the California models have the "CA" engraved after P22 on the left side of the slide.
Mine is BJ, so 18. The photos on the Walther site of the p22 shows the S and F like mine (cal and non-cal). But they might not have updated the photos yet.
 

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Discussion Starter #8
The only thing I would caution here is to not file the flats too large so that it might be possible for the front of the slide to catch on the edge of the filed area. I think that is why the factory nuts are designed as they are with regard to the narrow cutout for the wrench lands.. 1917
Good point! I never have used the "filed" nut since I use the barrel adapter. I did have to file a spare wrench which I had to file pretty thin to fit the new nut. I could have just filed two small slots in the original nut and then filed down my wrench, but didn't think of that at the time. (that thin Walther wrench does not come with the CA model.

BTW.. gun shoots good and is a lot of fun. I did have a problem with the firing pin spring (lost its spring), but Walther sent me one right out at no charge.
 
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