Naoko Yamamoto

A Magical Girl hired by the N-City's criminal underground. She wears a cowboy hat and has a wild-west style attire as her Magical Girl outfit. Her ability allows her to magically enhance any weapon she uses.

[Spoiler] She is the seventh magical to die when she shot a piece of glass that Ripple threw at her, causing her to be impaled by the glass shards (in the anime, the shards were a distraction and she was killed by taking a shuriken to the head). [/Spoiler]

(Source: Magical Girl Raising Project Wiki)