I have a Cee Bailey 22.5" shield that I really like on my red bike. It is considerably lower than stock shield because of its laid down angle. It is not as short as a custom made "shorty" though, which I also use in the summer. Somewhere on the forum there are some discussions and diagrams related to the different shields. My cut-down shorty is simply a stock one cut-down and painted black on the inside.
The Rifle is sized differently because of it's mounting base. You can easily make your own replacement shield with flat sheet of plastic from your local hardware store. Acrylic is easy to work with, Lexan is very durable.