Volume 27

Fullmetal Alchemist: Volume 27 is the last volume released for the Manga.

Synopsis
From the back of the volume:

"The Final Chapter! With the help of Hohenheim and their allies, the Elric brothers launch a desperate final attack against the homunculus “father.” But to claim victory, some may have to make the ultimate sacrifice. And when the dust clears, will a happy ending await our favorite characters in the final volume of Fullmetal Alchemist?"

Chapters Included

 * Chapter 107: The Last Battle (最後の戦い, Saigo no Tatakai)
 * Chapter 108: Journey's End (旅路の果て, Tabiji no Hate)
 * Bonus Chapter: Another Journey's End(もうひとつの旅路の果て, Mō Hitotsu no Tabiji no Hate)

Trivia

 * This is the final volume and features the last chapters of the Manga ever published.
 * The anime episodes follow the Manga Chapters very closely, much like the Brotherhood was known for.

ISBNs (Wikipedia)

 * Japanese: ISBN 978-4-7575-3054-6
 * American: ISBN 978-1-4215-3984-3