Help with fomalhaut?

[Hazzard]

Alright, so where do you get this gun or what ingredients have you got to mix to make it? I just realized that guns are actually quite helpful, so that's why I'm asking.

[Renmiri]

Find it after you complete the Antlion hunt, in the chamber where you defeated it.

For all Bazaar "recipes" see Final Fantasy Wiki
http://finalfantasy.wikia.com/wiki/Bazaar_%28Final_Fantasy_XII%29

[Hazzard]

Aaaah, the perfect lady I was waiting for to answer my question. Thank you very much.