Add gooseneck towing capability to your ISR rail mounting system.
Already have ISR rails installed for your fifth wheel hitch? PullRite ISR Gooseneck Adapters add a gooseneck ball to your existing rail setup, so you can tow both fifth wheel and gooseneck trailers without a second hitch system.
The gooseneck adapter mounts to your existing ISR rails and provides a standard 2-5/16" gooseneck ball. When you want to tow your fifth wheel, remove the adapter and mount your hitch. When you need the gooseneck, swap back. One set of rails, two trailer types.