Barricade
Also: Positional Barricade
An obstacle, prop, or structure that a match stage forces you to build a shooting position around rather than firing from flat prone.
A barricade is any prop a stage designer puts between you and the target to test your ability to build support on the fly. It might be a tank trap, a stack of barrels, a rooftop, or a wall with ports cut at odd heights. The skill being scored is how quickly and how steadily you can construct a positional hold against an awkward surface, often within a tight par time.
Barricades are the heart of PRS and similar circuits because they favor field-practical stability over the perfect flat-range group. Competitors lean a rear bag against the structure, brace the forend, or set a tripod beside it to make the rifle behave. The lesson that carries into real field work is that the position you can build in seconds matters more than the one you could build with unlimited time.