Firing pin gouge

[Gene Hackman]

Howdy folks. I was in my lgs today and a friendly police officer showed me how to take apart my glock slide and we noticed some unusual wear on the striker from the safety plunger. There is a little nick on it. Should I order a new one or is it ok? Thanks.

[muggsy]

Wrong forum. You need to go to Glock Talk or contact Glock Service. This is Kahr country. (Looks like Glock imperfection to me.)

[marcinstl]

https://www.lonewolfdist.com/Search....M=firing%20pin

[jeepster09]

wrong forum. You need to go to glock talk or contact glock service. This is kahr country. (looks like glock imperfection to me.)

+1 wrong forum.

[b4uqzme]

does it still function OK? That's usually my standard.

[berettabone]

[Bawanna]

A lot of harshness and mean spirit round here of late.

Personally I think it's fine, shoot it like ya stole it.

[jeepster09]

A lot of harshness and mean spirit round here of late.

Personally I think it's fine, shoot it like ya stole it.

Ya....knock it off!

[ltxi]

Me....I'd Dremel and Simichrome polish the rough edges a bit, shoot it some, then pull it apart and check for fresh rough marks, and then ignore if nothing new shows up. Alternatives....install a new pin and check it after bit, or just forget about it and shoot it. But I'm kinda anal....that last bit should do you just fine.

[TennSCN]

Gene, did you find any metal chips, shavings, etc. in the striker channel when it was disassembled? Not that it would be all that unusual in this CNC age all of it need to be cleaned out. Larger pieces may confirm a malfunction.

The machining at that end of the firing pin (striker) is where the firing pin block engages the the firing pin. That edge of the block is square and could, possibly, gouge the pin but you would find similar distress on the square edge of the firing pin block. See the assembly here: http://us.glock.com/technology/safe-action ('roll over' #2 on the diagram to see its function).

I would function test the firing pin block by removing the slide from the frame, push the rear lug of the firing pin forward and inspect that no portion of the pin exits the breach face; if it does, take the weapon out of service and replace the firing pin. The firing pin should ONLY move past the breach face after pressing (disengaging) the firing pin block into the slide. If everything functions correctly, clean up the rough edges and shoot it.

BTW, the function test should be performed every time the slide is replaced onto the frame. The rest of the function check is to assemble the slide on the frame, verify the weapon is unloaded, rack the slide with finger off the trigger: check that function is smooth, press the trigger: hear/feel the striker release; while holding the trigger fully depressed, fully rack the slide again: check that function is smooth, release the trigger: hear/feel the trigger reset, press the trigger: hear/feel the striker release. If everything functions as described, you are good to go.

Hope this helps.

[gb6491]

Gene, did you find any metal chips, shavings, etc. in the striker channel when it was disassembled? Not that it would be all that unusual in this CNC age all of it need to be cleaned out. Larger pieces may confirm a malfunction.

The machining at that end of the firing pin (striker) is where the firing pin block engages the the firing pin. That edge of the block is square and could, possibly, gouge the pin but you would find similar distress on the square edge of the firing pin block. See the assembly here: http://us.glock.com/technology/safe-action ('roll over' #2 on the diagram to see its function).

I would function test the firing pin block by removing the slide from the frame, push the rear lug of the firing pin forward and inspect that no portion of the pin exits the breach face; if it does, take the weapon out of service and replace the firing pin. The firing pin should ONLY move past the breach face after pressing (disengaging) the firing pin block into the slide. If everything functions correctly, clean up the rough edges and shoot it.

BTW, the function test should be performed every time the slide is replaced onto the frame. The rest of the function check is to assemble the slide on the frame, verify the weapon is unloaded, rack the slide with finger off the trigger: check that function is smooth, press the trigger: hear/feel the striker release; while holding the trigger fully depressed, fully rack the slide again: check that function is smooth, release the trigger: hear/feel the trigger reset, press the trigger: hear/feel the striker release. If everything functions as described, you are good to go.

Hope this helps.

Excellent post TennSCN!
Here's a thread from another forum discussing the same type of damage to a Glock striker that has a photo showing damage to the firing pin block: http://glock.pro/glock-tech-warranty...ar-normal.html

Me....I'd Dremel and Simichrome polish the rough edges a bit, shoot it some, then pull it apart and check for fresh rough marks, and then ignore if nothing new shows up. Alternatives....install a new pin and check it after bit, or just forget about it and shoot it. But I'm kinda anal....that last bit should do you just fine.

Here's another thread discussing the same type of issue, but in this one the OP does as ltixi suggests (polish out the rough edges, see post #5) and later reports "Still haven't shot it at the range, but dry firing hasn't caused any more damage at all."
http://glock.pro/glock-tech-warranty...fety-wear.html

For sure, do the function checks mentioned by TennSCN (and folks in the linked threads).

Regards,
Greg

[Ikeo74]

Better send it back to Glock and tell them they sold you a defective gun and you want a replacement.

[ltxi]

Very useful, Greg. Thanks much.

[TennSCN]

GB, I am honored to be quoted by you, cowboy. I have read and re-read many of your posts and stickies over the years, even copied a few to my notebook while learning the subtleties of surgery on Kahr pistols. You always stay on point, provide useful references, suggestions and are tenacious in your investigations. I, for one, have greatly benefitted from your work and I thank you.

My first concern with Gene's Glock was if the damage is nullifying the safety; no one seemed to address that. The cause could be a bad FP Safety Spring, obstruction in that safety channel or the top flange of the Trigger Bar could be damaged but that is better addressed by Greg, his links and folks more talented than I.

Gene, send photos of the firing pin, FP Safety and Trigger Bar to Glock CS, see if you get something in the mail...

[WMD]

Could it be just plating coming off? It sort of looks that way (if I am looking at it correctly). If that is the case, nothing to worry about.