Philadelphia sues Glock, says gunmaker's firearms are too easy to make fully automatic

https://whyy.org/articles/philadelphia-glock-lawsuit-krasner/

The lawsuit filed by District Attorney Larry Krasner alleges that the gunmaker’s firearms are contributing to mass shootings by their design.

The city of Philadelphia has filed suit against one specific gunmaker in a race to stop mass shootings in the city.

Public Safety Director Adam Geer says a “manufacturing defect” gives consumers the ability to easily modify Glocks with what is called a switch.

“They turn a semi-automatic, where you have to squeeze the trigger for each round. When you insert the switch, all of a sudden we got a machine gun,” he said.

Elsewhere in the article the claim is made that the manufacturer has actually "promoted" this possibility. As I I read it this is an exception to PLCAA protections related to advertising. The protection does not extend to "negligent marketing techniques" by a manufacturer, distributor, marketer or seller.