KOPIN Gun Boot.  Is a great case even if NOT used on ATV.  Can put pad lock on it instead of hitch pin.

Provides ample room for 50mm scope and even rifles with slings attached or shotguns up to 51" in length.  Designed to accommodate left and right hand bolt action rifles and shotgun.  Ergonomically designed handle and molded attachment points for a sling

Installs quickly and easily.  Mounts to most ATV tubular ATV racks & UTV Roll Bars using included adjustable-angle mounting bracket and hardware.  Made in the USA.    In good shape.  Red tape just to identify mine from others in large group.