What is Leveling Up?
It is a feature that enhances the appearance, kill effects, sounds, and more of specific weapon skins by increasing their tier.
Regular skins cannot be leveled up; only skins exclusive to leveling up can be leveled up.

How to Level Up
It is done at the Gun Lab and requires Fine Surface Treatment and Level Up Parts items.
The required materials may vary depending on the skin and level tier.

Level Up Effects
The visual appearance of the skin changes, and hit special effects and kill special effects are added.
Unique sound effects are also upgraded, improving the gameplay experience.

Important Note
Skin leveling up does not support cancellation, reset, or the return of level-up materials.