Silverbolt is a redeco of the Sixwing component Falcon, transforming into an F-16 Falcon jet. He forms the left leg of the Aerialbots' combined mode Superion, though he can also be swapped with Fireflight to form the right leg. He comes with the left foot to said combined robot mode.
Though the Micromaster Aerialbots were apparently originally slated as Kay-Bee stores exclusives, they barely showed up in the ever-shrinking chain. They saw more general release in Europe, and in the States, finally began showing up in other chains like CVS drug stores and Big Lots!.
Silverbolt (Micromaster Aerialbot, 2007)
The Silverbolt toy was released in Europe under the Cybertron line. There are no changes to the toy itself.