By Will Robinson
June 29, 2016 at 10:51 PM EDT
  • Movie

What’s a Ghostbuster without her proton pack? In a new featurette, the cast of Paul Feige’s Ghostbusters reboot showed off their equipment.

“In the world of ghost warfare, these ladies have it going on,” says Kate McKinnon, who stars as the experimental Jillian Holtzmann.

The tech becomes more and more advanced through the movie, progressing from a failed, giant nuclear laser to the compressed proton pack strapped to the Busters’ backs. A generation ago, Bill Murray and Co. waddled around with them. Not much has changed: They are heavy.

“That’s how I lost all that daggone weight,” Leslie Jones says. “I came here a size 16; I am now a size 12.”

“There’s no movie magic,” Melissa McCarthy adds. “Do they look heavy and sharp? That’s because they are.”

See the preview of the other toys below. Ghostbusters opens July 15.