You would probably have to ask a third party barrel maker.
Either EFK or KKM used to make custom barrels for GLOCK in different conversions. Whichever manufacturer made them did a 10mm barrel for the .45. I don't know if they are making barrels for other makes of handguns, though. It is possible if the tooling for a new make of handgun is not too much. FNH hasn't been in the game that long with the FNP lineup, so chances are slim right now. WOuld be nice to see some aftermarket stuff.