Gunsmith Cats

ガンスミスキャッツ

Rally Vincent knows her weapons well, while her partner Minne May Hopkins loves to play with explosives. The pair run a gun-shop illegally and one day Bill Collins of the ATF, blackmails Rally and Minnie May into working for the ATF. Little do they know, that they are getting involved in a mission larger than they could imagine.

(Source: Anime News Network)