Other than a little TLC on the trigger job, and a different hammer and trigger, is there any difference in the PC gun internals than a regular production gun? My understanding is that the regular guns use MIM triggers and hammers, but is there anything else? Can one purchase the PC hammer and trigger from S&W?

tjhennin,

PC revolvers vary so much that I don't think we can find much they all have in common. Many of them have ball-detent crane lock up and no ejector rod front lock. Many of them have forged hammers and triggers rather than MIM. How good an action job they get varies and some buyers who are very good at action jobs improve them. You can seek out forged parts on your own if you think they are better. Whether you start with a PC or production revolver, a home action job has one big advantage over the PC. We can spend far more time on it than a professional can afford to.

Best Regards,
Gil

When i get a new gun, i completely break it down & go through each piece. Looking for burrs, cracks, etc. Even go through PC guns as well. Then toothpick inside with little oil. Afterwords i use Mobil-1 Synthetic grease on a tooth pick & dab some grease on each "working spot" so that its lubed. I do that as well on my 1911s. Mobil-1 is a "high temp. grease you can get at automotive stores. Reassemble & shoot. Like our friend above said you can spend more time on your own gun than someone else doing it. If your life depends on your gun, then it has to shoot each/every time perfectly.
Carl

I use the white grease on mine, that way I can look down into it and if the grease is dark it is time to clean.