Sports South Exclusive. While the Sidekick models an old school cowboy revolver keeping with that classic look and feel, Diamondback added features like the cylinder release being incorporated to the old school ejection rod, a smooth Cerakote finish, checkered polymer grip panels, rear integral and a fixed front blade sight. The Sidekick is not only chambered in 22Lr with a 9 shot cylinder but also comes with an additional cylinder chambered in 22 Mag.