A Glock switch thus converts the weapon into a machine pistol effective at computerized fireplace.[9] The machine is roughly the dimensions of a United States quarter, and when put in on the rear with the slide on a Glock pistol (replacing the slide include plate), adds a selective hearth switch; https://glock-with-a-switch24432.wikicommunication.com/5492040/5_tips_about_glock_switch_you_can_use_today