‘American Horror Story': Watch Lena Dunham Pack a Gun and a Wig in First Look (Video)

Actress makes her debut on the Oct. 17 episode

Lena Dunham is packing heat in her debut on “American Horror Story: Cult.”

The “Girls” alum shows up during the Oct. 17 episode of the FX drama series, and a sneak peek at her appearance can be seen in a new promo for the show.

Dunham plays Valerie Solanas, the woman who attempted to assassinate Andy Warhol, and in the clip, the actress is sporting a short hairdo and aiming a gun.

The trailer for the episode entitled “Valerie Solanas Died For Your Sins: Scumbag” also features cast members Evan Peters, Adina Porter, Alison Pill and Frances Conroy.

Last night’s installment of Ryan Murphy’s series made headlines because its opening mass-shooting scene was edited in light of the recent attack in Las Vegas.

Check out the promo above.

“American Horror Story: Cult” airs Tuesdays at 10/9c on FX.