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Discussion Starter · #1 ·
Having watched and done the Glock "25 cent trigger job" I was wondering if there is any advantage or disadvantage to gently polishing the entire Glock firing pin. No metal removal, of course, just a smoother finish for less resistance. Good results on the polishing and better still with an OEM Glock "-" connector and then an Overwatch DAT trigger.

Any thoughts or opinions?
 

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It won’t accomplish anything and does (depending on how much is done) create a risk.

At the point the trigger bar is moving down the face of the firing pin you are forcing the trigger bar against the slope of the connector - a polished or unpolished firing pin will never be noticed compared to the resistance of the trigger bar against the connector slope. The exception would be if the firing pin lug had a nick or burr large enough to snag the trigger bar.

The risk is if material is removed and it changes the angle of engagement with the trigger bar. The result is often double fires.
 
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I disagree about the part about it making no improvement, but do agree, if you f'it up, you will create an unsafe and illegal situation. Nobody likes FA when they're expecting a single bang.

A gentle polishing of everything that moves during trigger pull will smooth and lighten the pull. By gentle, I mean a polish like Flitz on a cotton rag, working with your hands. It's too easy with a rotary tool to go way too far too fast.
 

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Discussion Starter · #4 ·
Both these responses make sense. A gentle polishing is one thing. Going crazy and actually removing metal and/or changing angles of engagement is quite another. Smoother parts tend to make everything run, well, smoother. When people go nuts and think they are armorers things tend to go wrong and unsafe.

Not looking for some crazy low trigger pull weight. A DAT trigger combined with a gently polished OEM "-" connector and mild "25 cent" polish yielded a consistent 4.5 lb +/- pull. The DAT gives a better re-set. Not usually a fan of non OEM parts, but the Overwatch DAT is well reviewed--and for good reason I should add.
 

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Look at it with magnifiers and see if there are significant tool marks? I would only then polish with a fine stone. The sear engagement area only and then just a tad while it is clamped in leather or lead in a vice and level being careful to keep your stone level and watching the work progress with magnifiers on.
 

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Discussion Starter · #6 ·
No tool marks. I just was wondering about gently polishing the entire firing pin with Simichrome or jewelers rouge, etc. Zero metal removal - just a shiny smooth surface. We did this with a friend's Kahr (as well as the trigger bar) and it did make his pull noticeably smoother.
 

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I have done the .25 cent polishing job on all of my Glocks using Flitz and a Dremel tool at low speed probably no more than 5 seconds in any one spot. Have not missed up any parts so far.I have not done so but polishing the hole firing pin might help with it being something for the spring to slip by on. How much more difference it would make?????
 

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Every little bit helps. With no aftermarket parts, and nothing other than polishing (i.e. no drilling holes to reposition the trigger spring), my old Gen3 G34 breaks at just under 4lbs on my Lyman digital gauge.
 

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Discussion Starter · #9 ·
Range report from today: Trigger much improved. Groups much better and just an overall nicer feel. Really liking the gentle polishing and Overwatch DAT trigger. I wish I knew they offered an NP3 coated OEM minus connector before I ordered the trigger. A bit pricey at $33, so I'm sticking with my polished OEM connector. Shorter reset a plus, which is solely due to the DAT trigger.
 

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checking the fired cases from my new G34.3 the firing pin impact depth looked shallow, using Flitz and a bit of elbow grease on the spring cup area of the firing pin and the spring cups themselves the impact looks almost doubled in depth.
 

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If you’re mechanically inclined and can afford a 35 dollar risk, you can take a pass or two on the lug face with some 800 grit sandpaper. Key is to keep the angle EXCTLY the same, peferably use a flat piece of glass under the sandpaper. Idea would be to remove any burrs or tooling marks. If it goes full machine pistol and you shoot your eye out, don’t say I didn’t warn you.
 

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Discussion Starter · #12 ·
checking the fired cases from my new G34.3 the firing pin impact depth looked shallow, using Flitz and a bit of elbow grease on the spring cup area of the firing pin and the spring cups themselves the impact looks almost doubled in depth.
No doubt there are specs for firing pin protrusion and depth of impact on cases. I would not want to exceed either for safety reasons. With a new pin tip wear is doubtful, but are there other causes?
 

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Discussion Starter · #13 ·
If you’re mechanically inclined and can afford a 35 dollar risk, you can take a pass or two on the lug face with some 800 grit sandpaper. Key is to keep the angle EXCTLY the same, peferably use a flat piece of glass under the sandpaper. Idea would be to remove any burrs or tooling marks. If it goes full machine pistol and you shoot your eye out, don’t say I didn’t warn you.
Fascinating such a tiny amount can make a difference. Wonder how much wear/how many rounds it would take to equal 1 or 2 passes as you describe.

For me a gentle polish was enough.
 

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No doubt there are specs for firing pin protrusion and depth of impact on cases. I would not want to exceed either for safety reasons. With a new pin tip wear is doubtful, but are there other causes?
No way polishing changed strike depth. My guess for that situation is either

1) Something was assembled wrong (springs/cups) and was put back together correctly after the polish job

2) The firing pin channel had garbage or oil and it was cleaned before reassembly

3) Perhaps poster switched from Russian primers to Federals after the polish job.
 

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If you’re mechanically inclined and can afford a 35 dollar risk, you can take a pass or two on the lug face with some 800 grit sandpaper. Key is to keep the angle EXCTLY the same, peferably use a flat piece of glass under the sandpaper. Idea would be to remove any burrs or tooling marks. If it goes full machine pistol and you shoot your eye out, don’t say I didn’t warn you.
You do not want to use sandpaper or file, only polish and don't want to get carried away with that.
 

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...placebo effect

No point in this, might as well spend the time watching porn and masturbating.
 
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Having watched and done the Glock "25 cent trigger job" I was wondering if there is any advantage or disadvantage to gently polishing the entire Glock firing pin. No metal removal, of course, just a smoother finish for less resistance. Good results on the polishing and better still with an OEM Glock "-" connector and then an Overwatch DAT trigger.

Any thoughts or opinions?
Did it to both my Glock's and they fired just fine.
 

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Might I suggest a date? Better to have a nice looking girl polish your firing pin for you.....
Good luck with that. This is Glocktalk. You think guys are playing with their gun parts (and OCD about trigger pull) because they have "nice looking girls"?
 
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