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Discussion Starter #1 (Edited)
Just bought a new PPQ M2 5-inch and only 75 rounds fired. Trigger is very gritty. I feel friction/resistance and actually can hear the sound of parts rubbing until I hit the wall. Breaks crisply but the trigger is not smooth at all during travel. I had 2 previous PPQ's that were smooth as glass so am unpleasantly surprised.

Researching the trigger issue, found some threads and links on the PPQ trigger issues that recommend polishing or replacing parts, which I will not do for 2 reasons: voids the warranty, and have no expertise in performing a detailed field-strip. I've contacted Walther customer service but so far have not received a response.

I've cleaned and lubed the gun a few times and repeatedly dry-fired it, hoping it will smooth out but so far no improvement.

If anybody has any suggestions I'd appreciate it.
 

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The suggestions in those threads cover virtually every option to overcome a gritty trigger. Since you have contacted Walther and refuse to use some of the suggested methods you should wait for Walther's response and proceed from there.
 

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Discussion Starter #3
The suggestions in those threads cover virtually every option to overcome a gritty trigger. Since you have contacted Walther and refuse to use some of the suggested methods you should wait for Walther's response and proceed from there.
Spoke to Walther tech today and he said to shoot it more and it may smooth out, to clean the plunger on the slide (which I did thoroughly) and if all else fails to recontact. He said ABSOLUTELY not to dry-fired it. "Never dryfire a striker gun," he said. Goes against the advice of many. Meanwhile I'll run a few more rounds through it, but am not optimistic that will help. As for "suggested methods", which would void the warranty, I am not "refusing," only being sensible.
 

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Put a drop of lube directly on the firing pin block with the slide upside down. Work the lube into the striker channel by pressing it in with a Q-tip a few times until a film of lube in on the sides of the firing pin block and in the firing pin block channel. Put the slide back on the frame and pull the trigger a few times. Do exactly this, then report back and let us know what it is feeling like.

99% of all "gritty trigger" threads I've responded to on this forum have been resolved by doing just this. This is also what worked on my own PPQ after I purchased it and found that it had a gritty trigger. Around a thousand rounds later, I no longer needed to lube the FPB anymore to get an extremely smooth trigger.
 

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Discussion Starter #13 (Edited)
Put a drop of lube directly on the firing pin block with the slide upside down. Work the lube into the striker channel by pressing it in with a Q-tip a few times until a film of lube in on the sides of the firing pin block and in the firing pin block channel. Put the slide back on the frame and pull the trigger a few times. Do exactly this, then report back and let us know what it is feeling like.

99% of all "gritty trigger" threads I've responded to on this forum have been resolved by doing just this. This is also what worked on my own PPQ after I purchased it and found that it had a gritty trigger. Around a thousand rounds later, I no longer needed to lube the FPB anymore to get an extremely smooth trigger.
Thanks for the tip. I tried this EXACTLY as you described and it helped but only a little bit. My previous PPQ had zero grit and this one still has substantial resistance/friction during travel. When I depress the plunger from beneath the magwell and depress the trigger the grit virtually disappears. Probably needs a stronger spring. Perhaps over time it will smooth out but I think it might need a firing pin block mod as depicted in this video: Guess I got a lemon.
 

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Using the video from above, remove your FPB and spring, put slide back on pistol and try your trigger. Is it still gritty? If not, you probably found your problem. If its still gritty, then the FPB is not your problem. Now, put your FPB back in before your forget.

I noticed he used springs from Sodemann. Wonder where he got that idea? :D He's obviously been scouring this forum. https://www.waltherforums.com/forum/ppq/46495-ppq-3-5lb-trigger-mod-5.html
 

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Discussion Starter #15
Using the video from above, remove your FPB and spring, put slide back on pistol and try your trigger. Is it still gritty? If not, you probably found your problem. If its still gritty, then the FPB is not your problem. Now, put your FPB back in before your forget.

I noticed he used springs from Sodemann. Wonder where he got that idea? :D He's obviously been scouring this forum. https://www.waltherforums.com/forum/ppq/46495-ppq-3-5lb-trigger-mod-5.html
While I appreciate your advice, I don't feel that any modifications, including new parts, ought to be the remedy. I've owned many semi pistols including Walthers that were more than acceptable right out of the box and required no adjustments. I'm a big Walther fan but this latest experience has soured me a bit. I'm not a gunsmith and do not feel confident disassembling a gun beyond a basic field-strip. I don't think I'll send the gun back to Walther. I'll keep and shoot it for awhile but eventually plan to sell if the trigger does not smooth out. I have my eye on an HK VP9, which I think has a better trigger. At least the one I tried at the LGS, brand new in the case for $620. I can buy on-line for $474 free shipping. Problem is you never know what you're going to get. I bought this gun from Bud's, by the way. First time I've been disappointed with a purchase from them.
 

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When I depress the plunger from beneath the magwell and depress the trigger the grit virtually disappears. Probably needs a stronger spring.

My first guess would be that the FPB spring is compressed and the slot has grit in it. My PPQ 45 was that way out of the box but smoother out after removing the spring, manually stretching out and thoroughly cleaning the slot.
 

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When I depress the plunger from beneath the magwell and depress the trigger the grit virtually disappears.
It seems like you've pinpointed it down to the FPB. I'd suggest lube and use from this point on. Mine started out gritty as well.

Thicker lube helps until things get smooth from use. Some have gone as far as nickle plating the firing pin block for around $15.

https://www.waltherforums.com/forum/ppq/24647-ppq-butter.html

My PPQ 45 was that way out of the box but smoother out after removing the spring, manually stretching out and thoroughly cleaning the slot.
I'd suggest against stretching any coil spring in the pistol. Normally stretching a spring starts it out with more spring tension, but it goes away very quickly, and in the end you have much less spring pressure than you had to begin with. Not a good idea with a safety device like a firing pin block.

Taking the firing pin block out of the slide for an inspection would be a good idea though, to inspect the firing pin block, the channel that it rides in, and the spring, to make sure they all look like they are in working order.
 

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I'd suggest against stretching any coil spring in the pistol. Normally stretching a spring starts it out with more spring tension, but it goes away very quickly, and in the end you have much less spring pressure than you had to begin with. Not a good idea with a safety device like a firing pin block.
Actually, the stretching I performed was sufficient only to allow the spring to regain original length and provide compressibility. Unless a spring is stretched to a point that causes physical damage or permanently alters the spring mean diameter the spring rate will remain virtually unchanged with respect to the constant rate of force exerted by the spring. Rate is determined by number of coils, wire diameter and outer diameter.
 
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