One of the first things I have been working on for the D&D5e Hârn conversion is getting some of the Hârn specific creatures converted over to D&D5e stats starting with the Gargun. First up is the Gargu-Arak although its only a draft and will be tweaked as needed.
Here is the Gargu-Arak as it will appear in the Bestiary Library Module. The weapons are all the ones that they are proficient with and not necessarily what each and every Gargu-Arak encountered will be carrying. These will be tweaked for each individual Gargu-Arak as needed when actually encountered.