Joined by the grieving parents of a son killed by a stray bullet hours before graduating from college, Attorney General Keith Ellison announced Thursday that he is suing one of the nation’s largest firearm manufacturers for designing and touting guns that are too easily made into automatic weapons.
The lawsuit claims that Glock Inc. has known for nearly 40 years that its semiautomatic handguns can be easily converted into illegal machine guns. In 1988, Glock founder Gaston Glock demonstrated a device that converted a semiautomatic handgun into a fully automatic machine gun. Ellison and O’Hara said some 65% of guns on the street are Glocks and that the manufacturer could easily fix the conversion problem with a design change.
Instead Glock has continued to promote the “fun” of shooting a fully automatic handgun while knowing that its semiautomatic handguns can be quickly and easily converted into machine guns, which are illegal in the United States, Ellison’s lawsuit said.

“We are not asking Glock to stop selling handguns. We are asking Glock to change their design of its semiautomatic handguns available to the public so that they cannot be easily converted into illegal machine guns,” Ellison said, adding that some Glock switches sell for as low as $10. Others can be 3-D printed within 30 minutes, endangering law enforcement officers who have seized scores of firearms with similar switches attached.
“We have every reason to believe that without decisive action from Glock, these numbers [of automatic gunfire] will rise,” Ellison continued. “Preachers will do more funerals. Families will grieve more children. We’ve got to act, and we’ve got to act now.”
Minneapolis Police Chief Brian O’Hara and Greg and Veronique Johnson, the parents of 21-year-old Charlie Johnson, stood with Ellison at a state Capitol news conference to support the lawsuit, filed in Hennepin County District Court. Johnson died after automatic gunfire erupted outside the Monarch nightclub in May 2021 just hours before he was to graduate from the University of St. Thomas. A friend said he and Johnson had stepped from an alley near the club when the gunfire rang out, striking Johnson in the back as he tried to escape.
Shedding tears for the son he called his best friend, Greg Johnson said Glock should be held accountable.
“I’m a lifelong hunter and gun owner, and I’ve asked myself many times: What’s the purpose of a device like this switch? … And I can only think of two: One is to increase my ability to put a bullet in a human being. The other one is, ‘I think it’s cool and I want to be able to do that.’ Obviously that’s what Glock is marketing,” Johnson said. “Think of how many additional handguns they’ve sold knowing that this was possible, and knowing that it increases the demand for their handguns. Shame on them.”