Tripod Head
Also: Ball Head · Leveling Head
The adjustable head atop a tripod that aims, locks, and levels the mounted rifle, optic, or spotting scope, setting how steady the position holds.
The tripod head is the component that sits between the tripod legs and the payload, providing the controlled movement needed to aim and then lock the rifle or optic in place. Ball heads pivot freely until a single knob clamps them, while pan-tilt and leveling heads separate the axes for finer control, and many shooting heads accept an arca-rail clamp so the rifle mounts and detaches quickly.
In tripod-shooting the head determines how steady and how repeatable the position is, since slop or drift in the head translates directly into reticle movement. A head that levels cleanly helps keep an anti-cant-level reading true, and the same tripod and head often pull double duty supporting a spotting-scope for observation.