Light primer strikes w PCR

[JFen]

I was at the range today.
Started with the PCR, which was clean as were the magazines.

I had 3 light primer strikes with blazer 124g m in the first 15 shots.
Loaded 115gr Win white box and the second shot was a light one too.

Finished shooting my SP-01 and when home.

At home I punched out the FPRP and it was worn but intact and didn?t seem to be bad.

I cleaned out the FP recess, minimal gunge there too.

The gun is OEM with about 1200 rds.

What could be the cause? This thing has run flawlessly and shot every ammo I?ve put in it without a hiccup.
Could this be a mag problem where the round is not getting chambered completely and the FP is striking it in thus causing a light strike? I didn?t think to switch out mags on the range.

What say you?

Thanks in advance


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[TNman]

The only light strikes I had with my PCR, and there were very few, was ammo related.

[TNman]

As a follow up to my message, I did install CGW extended firing pin and never had a problem afterwards.

[JFen]

As a follow up to my message, I did install CGW extended firing pin and never had a problem afterwards.

So with the extended FP you swapped out the FP, FP spring, retaining pin, block spring.... is that all?


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[JFen]

The only light strikes I had with my PCR, and there were very few, was ammo related.

As I said it?s run everything I?ve thrown at it until now.... so maybe I just need to install the extended FP from CGW.



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[TNman]

I'm just installed Cajuns ultralight kit which included the extended firing pin. Easy install.

As a follow up to my message, I did install CGW extended firing pin and never had a problem afterwards.

So with the extended FP you swapped out the FP, FP spring, retaining pin, block spring.... is that all?


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[JFen]

I'm just installed Cajuns ultralight kit which included the extended firing pin. Easy install.

As a follow up to my message, I did install CGW extended firing pin and never had a problem afterwards.

So with the extended FP you swapped out the FP, FP spring, retaining pin, block spring.... is that all?


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I guess I?ll start there.... it?s just weird that it all of a sudden starts this. All light strikes were in SA


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[GBUS]

Does the trigger pull feel different to you?

I'd check the main spring on the off chance a coil broke.
Perhaps it had poor heat treating and is weak.

Did you have another firing pin to compare against that FP?

Was the FP safety plunger operating smoothly/correctly?

Check the lifter arm in the sear cage, is it working as it's supposed to when you pull the trigger.

I'm no expert on these guns but those seem like the parts that would effect primer strikes.

[JFen]

Does the trigger pull feel different to you?

I'd check the main spring on the off chance a coil broke.
Perhaps it had poor heat treating and is weak.

Did you have another firing pin to compare against that FP?

Was the FP safety plunger operating smoothly/correctly?

Check the lifter arm in the sear cage, is it working as it's supposed to when you pull the trigger.

I'm no expert on these guns but those seem like the parts that would effect primer strikes.

All good things to consider....
Trigger pull was consistent and is now at home.
Lifter looks operational.

I?ll look at the main spring in the morning.

The FP looks great.

I just ordered he ultra lite kit from CGW.

So maybe that will solve the problem. I just don?t understand why this is happening now?

This is my EDC and if I can?t trust it I?m not happy


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[JFen]

Does the trigger pull feel different to you?

I'd check the main spring on the off chance a coil broke.
Perhaps it had poor heat treating and is weak.

Did you have another firing pin to compare against that FP?

Was the FP safety plunger operating smoothly/correctly?

Check the lifter arm in the sear cage, is it working as it's supposed to when you pull the trigger.

I'm no expert on these guns but those seem like the parts that would effect primer strikes.

All good things to consider....
Trigger pull was consistent and is now at home.
Lifter looks operational.

I?ll look at the main spring in the morning.

The FP looks great.

I just ordered he ultra lite kit from CGW.

So maybe that will solve the problem. I just don?t understand why this is happening now?

This is my EDC and if I can?t trust it I?m not happy


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Lifter is good on the FP block

Springs all good

I reassembled the slide and flipped the FPRP so the slightly worn side is forward until the replacement comes from CGW. I cleaned everything with the FP .  I?m gonna go run some rounds thru is in the morning to see if it performs.

I really need this guy to behave [emoji41]


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[Underwhere]

Check the timing to see whether the firing pin block is moving completely out of the way when you pull the trigger.

If it's off, the firing pin may be making slight contact with the block, causing it to slow down.

To do that you can take a q-tip and remove the fuzz. Cock it to SA. Push on the firing pin. It should stop. Slowly press the trigger while continuing to push on the firing pin. You want to make sure the firing pin moves past the block freely before the hammer releases. It will be very close.

[SI VIS PACEM PARRABELLUM]

^^^^This.

[Mercs]

That Win White Box could very well be the most unreliable 9mm ammo ever made


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[1SOW]

 If you do decide to install the extended FP,  be sure to lighten the hammer spring as discussed on the CGW sight.
Using the stock hammer spring with the extended FP can puncture some primers.

[JFen]

^^^^This.

Checked that out this morning, it functioned as designed.

I ran over to the range and it performed perfectly. I sent 100 rds thru it.

I?m chalking this one up to a dirty FP and a worn pin.


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