A bit of Blue Magic metal polish, a lot of dry practice, and a few hundred rounds through it will do wonders for any grittiness you may initially feel.
I also found that the grips were a bit harsh on my skin when wearing IWB, so a light sanding took care of that.
One last thing...because it always gets asked:
For OWB - Kydex Tech, Tac Tech or Blade Tech (Shooter's pack).
For IWB - Alien Gear or Old Faithful.