Good point about damaging your gun however I use the handlebar holders for my high power rifle and a crossbow. No damage yet. Don't like a half case with some of the gun sticking out. To me it is the same a having no protection. Oskar, I've seen and used that type of case on an ATV but its overkill for a pedal bike. Anyone know of a plastic case designed for just a shotgun that is relatively sleek.

Nothing is foolproof to a sufficiently talented fool.