Shadow 2 Not Feeding

[Crawl]

Planning to send this in for warranty repair anyway, but I'm curious whether anyone here wants to try to solve this perplexing issue.

Pistol:  Shadow 2, Cajunized. Close to 10k rds on, if not more. No issues before...ever.

Problem:  One of the first few rounds of every magazine has started refusing to feed all the way into the chamber.

It's always one of the first 5 or 6 rounds, and it occurs with all of my magazines.
Occurs with all kinds of ammo, including S&B 124gr.
The head of the round is against the bolt face, and the ogive is against the inside of the chamber.

THOROUGHLY cleaned the gun, replaced the extractor and spring , replaced the recoil spring, replaced the slide stop.

WHAT ELSE COULD IT BE?

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[Lock-n-load]

If the round has been fired and wont extract . First clean extractor well.. then remove buffer .. that worked for me..

[tdogg]

I'm guessing it's your extractor or breach face.   I am struggling with the same issue on my TSO.  I'd inspect the breach and polish it smooth.   Do you feel anything when sliding a cartridge up into place under the extractor?  It could be magazine springs.  When have you replaced the magazine springs last?  Are they stock bases and followers?

CGW will figure it out.   Good luck!

Cheers,
Toby





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[Crawl]

I'm guessing it's your extractor or breach face.   I am struggling with the same issue on my TSO.  I'd inspect the breach and polish it smooth.   Do you feel anything when sliding a cartridge up into place under the extractor?  It could be magazine springs.  When have you replaced the magazine springs last?  Are they stock bases and followers?

CGW will figure it out.   Good luck!

Cheers,
Toby





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Everything has been polished except for the Breach face. CGW suggested recontouring the extractor. Gonna let CZ USA look first since it may be covered under warranty.

With all the rounds this thing has seen, I'm not sure what would cause the surfaces to change.

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[Crawl]

Update: Disassembled all the way, cleaned again (only part that was still significantly dirty was the bolt face), reinstalled all factory parts...no more feeding issues.

After a couple hundred rounds without issue, I started putting other CGW parts back in. No more problems. Considering that it isn't likely any of the Cajun parts could be causing the FTF, I have to assume that there are some user errors involved.

Original feeding issues may have been caused by a dirty extractor.  Is there anything else that could have caused it? Would lubricating the extractor have caused it?

After cleaning the extractor the first time, I'm not sure what would have caused further issues, but maybe I reassembled it poorly. Any common mistakes made with extractors?

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[tdogg]

It's fairly idiot proof, I think you just cleaned the right spot.

I finally fixed my issue and it was magazine tuning.  I replaced the extractors and springs, polished the feedramp, polished the breech, and none of that fixed it.  Tuning the magazine to ensure they don't rub when fully loaded upon insertion (also make sure they are consistent from bottom to top, width and thickness) was the ticket.  I found one magazine had a crack in the tube in the vee portion that transitions the double stack to single feed (same spot on both sides).  I've regulated that to my dry fire magazine.

I've been out with both twice now without issue.  They are getting up there in round count so I need to keep tabs on maintenance and spring changes.

Glad you got it sorted!

Cheers,
Toby

[Crawl]

Thanks, Toby. I've been catching up with all the threads I missed while I was away. Saw yours about the magazines. Thanks for the detail here. I'm trying really hard to understand the specific failure because it's the only way I can trust this gun again.

[dolph406]

@Crawl do you disassemble the whole slide when doing a thorough clean? I find that the amount of gunk in and around the extractor and bolt face is a lot. Pull your firing pin out and drive out your pin that holds the extractor in. Clean the holes and springs and use a dental tool around the bolt face to get carbon off. I do deep cleaning every 3-4k rounds.


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[Crawl]

@Crawl do you disassemble the whole slide when doing a thorough clean? I find that the amount of gunk in and around the extractor and bolt face is a lot. Pull your firing pin out and drive out your pin that holds the extractor in. Clean the holes and springs and use a dental tool around the bolt face to get carbon off. I do deep cleaning every 3-4k rounds.


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I hadn't done it before now, so I assume that's what caused the initial failures.

At first, I cleaned the extractor, but the second time around I spent additional time on the bolt face...probably could've been more thorough on it the first time.

However, it was still malfunctioning after cleaning it twice. Only thing that changed after that was that I reinstalled all the factory parts.

My conclusion is that it was too dirty to start with and then I somehow didn't install the extractor spring properly after that. Though I'm not entirely satisfied with that conclusion.

[bonj]

excuse my lack of terminology experience, but  what is the bolt face?

[Earl Keese]

excuse my lack of terminology experience, but  what is the bolt face?

Breech Face

[Crawl]

excuse my lack of terminology experience, but  what is the bolt face?

Yes, it's probably proper to refer to it as the Breech face. The forward face of the slide against which the case head is held by the extractor.

And that little divot was rather dirty as well.

[Crawl]

Still have had zero malfunctions in the S2 since putting all the CGW parts back in and a red dot on top. It doesn't hiccup on any ammo, and I'm using the original OEM recoil spring and extractor.

Could only have been an extraordinarily dirty extractor, dirty breech face, and improper reassembly.