How do you dismantle 9mm handgun?

To dismantle a 9mm handgun, first ensure the firearm is unloaded by removing the magazine and checking the chamber for any ammunition. Next, typically, you will need to pull back the slide slightly to engage the slide stop and then remove it. Once the slide is off, you can usually remove the recoil spring and barrel from the slide. Always refer to the manufacturer's manual for specific instructions related to your model.