This is a posable action figure.
From the Hasbro website:
In Star Wars: Rogue One, the imposing emissary and enforcer of the Emperor's commands encased in ominous black armor, Darth Vader, is charged with rooting out rebel activity and any threats to his master's reign.
Imagine new galactic maneuvers with this 3.75-inch Darth Vader figure from Star Wars: Rogue One! Collect and battle with other figures and vehicles from Star Wars: Rogue One.
Includes figure, 2 accessories, and projectile.