Either a M&P Shield or an XDM .40 in a Comp-Tac MTAC Holster.
Due to its slim profile a Gov't model 1911 is surprisingly easy to carry and conceal. I used Milt Sparks IWB holsters for years but recently went with some Raven Concealment gear which is really excellent... much faster reholstering with kydex.
Regards,
Mark
Almost wish they would make a Commander size gun with a Officer;s grip to keep from printing as easily.