Primary Machine Milling serial number off slide?

[Captain Paul]

So I?m looking at the Primary Machine V2 and the description says they re profile the entire slide and remove all of the OEM writing. I assume this removes the serial number. So what is considered the serialized part of a P10c? I don?t see a serial number on the frame.

[KFD147]

Look under the rail/dust cover.

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[eastman]

As far as the official USA serial number, only the one on the frame matters. Many parts of Europe require the slide and barrel to also be numbered.

[Raining_Brass]

If you'd get in trouble for it, we [Primary Machine] wouldn't do it.