classic design makes one I believe. It's glass and fits between a style bar and tonneau cover. I'm not sure how it mounts, but I'd imagine it's a huge pain in the butt. I've seen a mesh one as well that seems to be a stand alone unit, but again, looks like more trouble than it's worth.
The one from Classic mounts with two screws. They are big and are easily removeable. They mount to the Classic light bar. Works great with the hard tonneau cover at keeping wind away.
I do have a tonneau cover and wind screen for sale. I will be placing in the market soon. No light bar.