A grenade launcher is a firearm designed to launch grenades in a high-arc trajectory. These weapons can be standalone or attached to rifles, allowing soldiers to engage targets at a distance. They are commonly used in military operations for their ability to deliver explosive payloads without direct line-of-sight. Grenade launchers come in various types, including single-shot, revolving, and automatic models. They can fire different types of grenades, such as high-explosive, smoke, or stun grenades, making them versatile tools on the battlefield. Their design enhances the effectiveness of infantry units by providing indirect fire support.