Be a real killstreak in TF2. TF2 Killstreak kit - this is an action item that can be used on certain types of weapons to create kill-streak weapons. With the kill-streak weapon, players can change the appearance of the hero and his gun, add glitter and glow weapons, or a different lighting for the eyes. The changes then become available after a certain number of kills.
Players can apply killstreak kits to weapons of any quality. If a serial killer kit is applied to a conventional weapon, it becomes a unique type, as if the weapon was accidentally found. Players can obtain kits both from the crates and marketplaces.