ISP-6 Imperial Shuttle Pod

The Imperial Shuttle Pod, or ISP-6, was a much smaller variant of the Lambda-class Shuttle. Used primarily in scouting missions, the ISP was lightly armed with two blaster cannons. They were also presumbably used for escorting Lambda shuttles.

Behind the Scenes
The ISP-6 was actually a 1983 Kenner vehicle, and was not seen in the movies.