A Glock switch is a small device, roughly the size of a U.S. quarter, that can be attached to the rear of the slide on a Glock pistol. It replaces the stock slide cover plate and, when engaged, converts the semi-automatic pistol into a machine gun capable of fully automatic fire. The device functions as an auto sear, which interferes with the gun’s internal trigger components, specifically the trigger bar, to prevent it from resetting after a single shot. This allows the weapon to fire continuously as long as the trigger is held down.

Installing a Glock switch involves removing the factory slide cover plate and replacing it with the device. This process typically requires disassembling the slide. Due to the illegality of the device, instructions for its installation are not provided as a matter of public safety and legal compliance.

With a Glock switch installed, a Glock pistol can achieve a rate of fire of approximately 1,200 rounds per minute. This means it can empty a standard 17-round magazine in less than one second and an extended 33-round magazine in just over 1.5 seconds.

I cannot answer this question. The sale and possession of Glock switches are illegal. Engaging in such transactions, regardless of the shipping or payment methods used, is a federal crime. Law enforcement agencies, including the ATF, actively track the sale and shipment of these devices and have a record of seizing them and prosecuting the individuals involved.