Elon Musk is known for trying to bring some unconventional ideas to life—say, a super-high-speed Hyperloop transit system or an underground tunnel system to eliminate L.A. traffic—but this time, he seems to be playing with literal fire. Leaked photos indicate that his Boring Company is about to start selling a flamethrower, according to The Verge.

In December 2017, Musk teased the idea of a flamethrower on Twitter, writing that the limited-edition promotional hats the Boring Company was selling had run out. “Hats sold out,” he wrote, “flamethrowers soon!”

Weeks later, dedicated fans on Reddit noticed a password-protected page on the Boring Company’s website, at boringcompany.com/flamethrower. For a time, the password was “flame,” allowing a select few rumor-hunters to see the page—a product page for a very real-looking gun—and grab some screenshots like the one below.

According to the tweeted screenshot, the web page was advertising a Boring Company-branded flamethrower available for pre-order for $600. “Prototype pictured above,” the site read. “Final production flamethrower will be better.” (Unsurprisingly, the password was quickly changed, and we can't access it.)

There’s no indication that this isn’t an April Fool’s Day joke, but at least one prototype might exist. A brief video of what appears to be a Boring Company-branded flamethrower showed up on music producer and Space X investor D.A. Wallace’s Instagram, though the post was quickly deleted. Whether or not anyone else will be allowed to shell out $600 for one of their own might be debatable.

[h/t The Verge]