Can be found in Pistol - Revolver
The Peacekeeper is a sidearm locked behind several heavily encrypted easter eggs in Battlefield 1. Those who have it unlocked absolutely love it, those who haven't just couldn't be bothered to try.
This revolver should work almost the same as the vanilla Single Action Army, although reloading pose has been substantially changed more akin to that of my old Gasser 1870 mod. It is to simulate the pose where you hold the pistol in your left hand, indexing the cylinder with thumb and operating the ejecting rod with index finger.
If you would like to know more about its story as an easter egg, you can spawn an info card to read about it.
The model and sounds are from Battlefield 1.
