The blaster originally used by Han Solo in Star Wars: A New Hope is expected to fetch $500,000 (£410,000) at auction.
The prop shooter, used by Hollywood superstar Harrison Ford, who played Han Solo in the series, had previously gone missing and is presumed lost.
However, it was rediscovered by the Rock Island Auction Company (RIAC) in Illinois and will be available at the company’s flagship auction.
According to the RIAC, the gun is the only surviving blaster mount used to film the original Star Wars trilogy.
Star Wars: A New Hope was released in 1977 and was the first film released in the iconic series.
Pre-auction estimates for Han Solo’s BlasTech DL-44 Heavy Blaster are $300,000 to $500,000 (£245,000 to £410,000).
The tripod is based on the German-made Mauser C96, one of the first and most recognizable semi-automatic pistols ever produced.
The software designers wanted to give Solo, the captain of the Millennium Falcon, an old-fashioned western hitman.
Star Wars memorabilia in Hollywood are highly coveted by collectors.
In 2018, Han Solo’s blaster from Return of the Jedi was sold to Ripley’s Believe it or Not! for $550,000 (£451,000) dollars.
More recently, an original X-wing miniature fender sold for $2.3 million (£1.8 million) in June 2022.