If it has a tactical rail on it, Sig Sauer and Mako Group make "bridge" mounts. If not, I know of no one that makes a mount which doesn't require drilling and tapping your frame.
If that's not an issue, a good gunsmith should be able to fit an Allchin or Weigand/Caspian. I've seen P220 Sports fit with the Weigand/Caspian mounts in the past... they make a "universal"
version that allows a bit more "fit-ability" than the pre-drilled version.