well it isn't pro responsible gun owner who follows the laws of the State or City of New York , that's for sure.
However the first act of violence - that starts the story rolling - displays the helplessness of good people who face more numerous bad people. And tragedy occurs.
Then when heroine tries to buy legally she discovers what gun laws she is required to conform to in order to BE legal. And decides her right to personal safety is more important than Guilianos bullshit.
Her 1st act of violence is pure self defense. If she had followed the gun laws she would have died , end of movie.
.... maybe there is a difference between "pro-gun" and "Pro respecting the unconstitutional laws of infringement of the 2nd Ammendment " all of us good subjects adhere to .