UMP-45 is a submachine gun that was designed by Belgian company FN Herstal. It has an unusual, futuristic design with two barrels. Those who have held this weapon claim that it is very comfortable to hold and to shoot. The weapon was covered with a deep red undercoat and then decorated with custom-made silver details. Exchange your Soul Gems for the StatTrak™ UMP-45 | Primal Saber. The UMP45 is a submachine gun with a very high rate of fire and low damage. It has been spray-painted using a stencil in a paisley pattern. StatTrak is a function that tracks the number of kills made with a particular weapon and gives it an exclusive stat tracking tag which can be applied to the item. This is a new variant of the well-known UMP-45 SMG. The weapon has undergone several modifications and is now more compact and easier to use. The weapon was decorated with a pattern made from a saber-tooth tiger's teeth. Exchange your Soul Gems for the StatTrak™ UMP-45 | Primal Saber.