https://www.cdnnsports.com/1911-38-s...sig-sauer.html
A Sig 38 super barrel can be mated to a Kimber 9mm full size or you could get a sig 1911 and have a dual caliber set up. Don't quote me but I believe they are Nowlan/Wilson barrels vs. Para ramped barrels that have a different shape for the recess cut in the frame.