LE guns get priority in attention when it comes to a place in line, but as long as any needed parts are in stock (and not awaiting delivery from a vendor) they usually seem to get guns in & out within a couple of weeks. Sometimes faster.
Revolver & pistol repair are separate and Walther products usually go to the repair techs in the Walther America building.
Just depends, though.
Sub Club #9; .40 S&W Club #1953; S&W Club #3913
Retired LE - firearms instructor/armorer