>>515089726
It is the back slide plate. It’s a Glock, so it’s always plastic. You can 3D print them so they prevent the trigger from resisting. When you pull the trigger the recoil pushes the slide back, then a spring returns the slide. During this process the shit happens mechanically that resets the trigger so it won’t fire again until you release, then pull the trigger again, under normal operation. The switch (nigger term), switched it to full auto. Glock doesn’t make .50. A .45 would be the largest diameter bullet. A 10mm Glock would be the most powerful round it is chambered in.