Responses
Black Lagoon
Claymore
Dogs: Bullets & Carnage
JoJo's Bizarre Adventure - Stone Ocean
Dorohedoro
Hellsing
The Arms Peddler
Enjoy!
Tokyo Crazy Paradise - it's shoujo though but worthwile :)
Joou no Hana
Gokusen - josei
Girls of the Wild's
Shingeki no Kyojin (but I think you should have read it ╮(￣▽￣)╭)
a manga with some badass girls?