The First Order's sentry droids first appeared in the film Star Wars: Episode VII The Force Awakens, which was released in 2015. They were not named in the film, but were identified as sentry droids in the reference book Star Wars: The Force Awakens: The Visual Dictionary, which was written by Pablo Hidalgo and released in conjunction with the film.
The fold-out armaments of the droid first were first depicted in the 2017 video game Star Wars Battlefront II, where it can be deployed as an ability of Captain Phasma. However, they were originally designed for "Station Theta Black"—the eleventh episode of Star Wars Resistance's first season—which would not premiere until one year later on December 9, 2018.
The droid's entry in the Databank erroneously states that the droids' only appearance is in Resistance, despite its appearances in the Sequel trilogy and Battlefront II.
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