Suppressors do not fully silence guns. While they do reduce the amount of noise a gun makes, they do not completely muffle the sound.
This is because a suppressor attaches to the barrel of the gun and redirects the expanding gasses that are released when a bullet is fired. These gasses cause noise, and a suppressor helps to muffle this noise by trapping and redirecting these gases. However, since some of these gases will still escape from around the barrel of the gun, there is still some level of noise that will be produced when a bullet is fired.
Additionally, a suppressor will not completely silence the noise of the gun’s action. This is the noise that is produced when the gun’s mechanism moves and loads a new bullet into the chamber. While suppressors can help to muffle this noise, they cannot eliminate it.
So while suppressors can be beneficial in reducing the amount of noise produced by a gun, they will not completely silence the gun.