The Nine-Eleven is a .45-caliber handgun originally created for the US Military in 1911. The model used to be name after its year of origin, but was officially changed to commemorate the victims of the historic terrorist attack by the same name, as well as boost sales through marketing to patriotic rubes.
The Nine-Eleven is a common Holy Gun among Shootalotical Cults. It is said that the entire world has been at war three times, and the Nine-Eleven served in all of them.