Ford Bronco 2 Door Model Window Trim Ring made out of 1/8" aluminum. This design is a no drill design, and clamps onto your window opening adding rigidity.
These trim rings allow you to remove the Gullwings, and run your hardtop with no Gullwings and open windows, but keep the brackets attached for protection of the fiberglass window lip. These either can be used with your existing Gullwing brackets, or can be pushed as it's own kit with trim ring and brackets.