Shadow SP01. Firing pin stop fell out.

New2U

New2U

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Toronto, ON
I've replaced stock main and firing pin springs with 13 lb springs (came in one package as a kit),
went to my range to test, fired about 120 rds. without a hint of any problems. A week later went to the range again and after about 50 rounds my firing pin stop first and then the pin with the spring fell out.
While it's obvious to me that the the softer firing pin spring is the cause of the problem since the pressure of the spring keeps protruded rounded end of the firing pin in the hole of the pin stop, my question is what do i do to prevent this from happening? Did anybody have this problem?

Thanks.
 
you likely have crud in the firing pin hole (breachface), or on the firing pin itself, which has allowed the firing pin to stick momentarily in the hole, which then allows the rear plate to fall off. I've had that happen twice over the years. Both times with the reduced power firing pin spring.
 
Slavex said:
you likely have crud in the firing pin hole (breachface), or on the firing pin itself, which has allowed the firing pin to stick momentarily in the hole, which then allows the rear plate to fall off. I've had that happen twice over the years. Both times with the reduced power firing pin spring.
Click to expand...

This exact thing has happened to me in my 1911. There was a piece of crud in the firing pin spring and it was holding the pin forward and caused the rear plate to fall off.
 
I would not lubricate breechface, if you get oil in the firing pin area you will eventualy have carbon buildup as well as gunk, eventually it will cease your firing pin. Years ago when RCMP first switched to semi autos they had an incident when gun failed to fire in a very intense situation. After taking it apart in the armory they found that firing pin was not moving enough to strike primer, all because oil was used in that area and the gunk accumulated over time. Ever since then that area is kept clean and degreased...believe it or not, it did happen.
 
Dmitri_W said:
I would not lubricate breechface, if you get oil in the firing pin area you will eventualy have carbon buildup as well as gunk, eventually it will cease your firing pin. Years ago when RCMP first switched to semi autos they had an incident when gun failed to fire in a very intense situation. After taking it apart in the armory they found that firing pin was not moving enough to strike primer, all because oil was used in that area and the gunk accumulated over time. Ever since then that area is kept clean and degreased...believe it or not, it did happen.
Click to expand...

Thanks
 
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