The Antares is a gun in Final Fantasy XII. In the original version, its license costs 80 LP. In the Zodiac versions, its license costs 90 LP and it can be used by the Machinist and the Shikari, although the latter needs to unlock Shemhazai first.
Antares is another name of the star Alpha Scorpii located in the constellation Scorpio, named from Greek meaning "against Ares" due to its red coloration similar to the planet Mars. In the religion of Stregheria and in some translations of the Book of Enoch, Antares is a fallen angel.