Free Upgrade

The Free Upgrades are special items that are only obtainable from the Lucky Chest. They were introduced in the 12.5.0 update, after the modification of the upgrade system.

Appearance
They appear as blueprints, but in the center of these blueprints, they indicate the icon of a weapon subcategory.

Free Upgrades
Here indicates a table showing the name, image and use of the free upgrade items.

Trivia

 * They would've been even more useful if they applied to the old upgrade system.