Luke Skywalker's blaster from "Star Wars: The Empire Strike Back" is expected to sell at auction later this month for as much as $300,000.

Made of fiberglass, the DL-44 Blaster was given by actor Hamill to an 8-year-old British boy as part of a 1979 episode of the BBC children's series "Jim'll Fix It." The prop was sold at auction in 1998 to a private collector.

"This is a very rare and desirable piece of 'Star Wars' history," said Sam Heller, an auctioneer at Nate D. Sanders in Los Angeles. If the blaster meets sales estimates, it will become the most expensive movie weapon ever sold. Han Solo's similar blaster, used by Harrison Ford in "The Empire Strikes Back" and "Return of the Jedi," fetched $140,000 in 2013.

The online auction continues through Jan. 28.