Helm: Vulgar Militia Helm

Armour: Vulgar Militia Armor

Gauntlet: Vulgar Militia Gauntlets

Leggings: Vulgar Militia Greaves

Where To Find: 

(Click the link above to view the equipment and watch the getting video.)

The item is acquired as a drop from Vulgar Militiamen enemies, commonly located around the Bestial Sanctum and Farum Greatbridge sites of grace.