As some of ya'll may know, I occasionally tow a fifth wheel camper. The hitch that I use is a Pullrite 16K Superglide. I really enjoy the function of this hitch, as it's an automatic slide system.
Recently, I've decided to look for a gooseneck horse trailer and ordered the Pullrite adaptor for my system. It sits on top of the rails and pins into place. The cost was about $350.00 and looks rather sturdy.
So anyone looking for a system that incorporates a 5'ver slider, as well as a gooseneck, this is pretty slick.
The Superglide on the rails:
And the Gooseneck on the rails: