A grapnel gun is a device used to launch a small hook or grapnel attached to a rope. It is designed to secure a line to a distant object, allowing for climbing or retrieval purposes. Commonly used in military and rescue operations, the grapnel gun can help individuals access hard-to-reach areas or pull objects towards them. The grapnel itself is typically a small, multi-pronged hook that can catch onto surfaces. This tool is often associated with activities like rock climbing, search and rescue, and military operations, where quick access to elevated or difficult terrains is essential.