The PMC is fine. Just run FMJ through it at first.
BTW, I use Tetragrease on the slides of my autos. You may want to run the pistol "wet" for the break in period. You'll get some oil on you, but it will lubricate the parts well so they "mate" together.
FYI, you can oil the Parkerized finish and it will help preserve the finish.
“If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that ye were our countrymen.” ― Samuel Adams