A pistol grip makes a gun more dangerous because it allows the operator to hold the firearm more tightly, which gives them more control over the weapon. This can result in quicker and more accurate shots, as well as increased stability when firing. Additionally, a pistol grip can also make a gun easier to conceal, which can be particularly useful for tactical situations.
However, it is important to note that not all gun grips are created equal. Some pistol grips may make a gun more difficult to control, which can offset any benefits that they offer. As such, it is important to choose a grip that is comfortable and easy to use, as well as one that provides the desired level of control.