So... is Sabage-bu! finished or not?
NO, it is not finished.
Why?
The anime finished before the manga:
Anime finished: September 21, 2014
Manga finished: December 01, 2016
MangaUpdates contains information about the anime adaptation and indicates that it is incomplete.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
The mangas and the non-core contents are excluded by default, but you can enable them by clicking the buttons below:
Synopsis
Momoka Sonokawa, a seemingly ordinary middle schooler, gets unwillingly dragged into the world of airsoft and survival games after an encounter on her way to a new school.
She's recruited, against her better judgement, into Aogiri Academy's Survival Game Club, known as Sabage-bu!
The club is filled with eccentric and enthusiastic members who take their hobby to bizarre extremes, constantly disrupting school life.
Momoka, wanting nothing more than a normal school experience, struggles to adapt to the club's unusual antics and the increasingly chaotic situations they find themselves in.
Essentially, the anime explores Momoka's journey as she navigates the wacky world of Sabage-bu and tries to maintain some semblance of normalcy amidst the madness.