The M1911 Pistol is a Codex Entry featured in Battlefield 1. It is unlocked upon obtaining ten kills with the M1911. Only standard variants in the game will count toward this codex, excluding the Hellfighter variant.
A truly legendary handgun, the M1911 is widely considered the greatest semi-automatic pistol ever made and the grandfather of the modern handgun. In the early 20th century, the US military was conducting trials of several self-loading pistol designs, including the M1900 which was the first handgun to utilize short-recoil operation.
The trials continued for several years; the M1900 gradually evolved and more of the competition fell away. During testing in 1910, the design that was to become the M1911 swept away the final competitor. Over the course of two days, the M1911 fired six thousand rounds from a single pistol, and when it grew hot it was simply cooled off in water. it became the first self-loading pistol that passed with a 100% grade, leading it to being adopted by the US Army early the following year, and then by the Navy and the Marine Corps in 1913.
It was with the US entry into WW1 that the M1911 saw large scale action for the first time, where its reliability and powerful .45 caliber bullet earned it the nickname "The Man Stopper". Patton was a captain in WW1 and carried an M1911 with ivory grips engraved with his initials, and Sergeant York famously used the M1911 during his heroic acts in Meuse-Argonne.
Multiple nations have used the pistol, including the Royal Navy, France, and Canadian Officers in WW1. The M1911 remained the standard-issue sidearm for US forces up until 1986 when it was replaced, but even to this day some special forces units still use it.