I own a second gen P10C with the ambi mag release and the anti-rotation striker. I have several thoudand rounds through it without issue and have carried it on many occasions. It is not completely stock and has a Primay Machine barrel and a CGW tool steel striker. Everything else is original. The trigger has broken in nicely and has a smooth, crisp 4.25lb pull when meaured near the bottom of the trigger. This post and several other videos on YouTube have put a little doubt the safety of this pistol in my mind. Since I would rather know for myself than trust the anonymous internet colective, I wanted to see what is going on inside the assembled pistol.
I bought a spare back plate, and with some trial and error, I dremeled it so that I can see into the assembled pistol to better understand the firing pin safety function. I had seen it posted elsewhere that there is something other than the spring keeping the firing pin safery from rotating away from the firing pin. I can now say, having seen with my own eyes, that this is not the case. The only thing keeping the firing pin safety in place is indeed the spring. With a bent paper clip, I can easily move the safey with very little pressure. I can also say that the sear engagement is very robust. Using an eyeglass screwdriver, I was unable to get the sear to releaae the firing pin by exerting pressure on the trigger bar or the firing pin.
After that, I disassembled the slide and removed the firing pin safety and reassembled the pistol with the modified "inspection back plate". With the firing pin cocked I hit the slide and frame repeatedly with a rubber hammer from many angles in an effort to get the sear to release the firing pin. I was unsuccessful in getting it to release after dozens of attempts.
I am confident in MY pistol. It does not have the factory firing pin installed. I will retest with the factory firing pin when I have time. This is obviously a sample of one and not necessarily representative of every P-10C out there.
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