A Glock switch, also known as an auto sear or machine gun conversion device, is an illegal aftermarket accessory that converts a semiautomatic Glock pistol into a fully automatic weapon.

Before speaking at a Boys & Girls Club in New Jersey’s largest city, Platkin’s office played a video of a law enforcement officer demonstrating how to use the Glock switch. The video shows an officer ...

Platkin said Glock is profiting by continuing to sell the adaptable version in U.S. markets, even as they make and sell handguns in Europe that cannot accommodate such a switch. Also known as ...