In the Seven Day World, after we get a suitable weapon, we can enhance its strength through weapon modification and upgrading. Everyone should already have some understanding of weapon modification. How to upgrade weapons in the Seven Day World might not be very clear to many players. Today, I will share with you the method of upgrading weapons, hoping that everyone can increase their weapon attributes through this way.

If players want to upgrade their weapons, first, we need to prepare the materials required for weapon upgrading. A considerable amount of materials is needed, especially a large number of blueprint fragments. Once all the necessary materials are prepared, the weapon can be officially upgraded.
Weapon upgrading needs to be completed in the weapon enhancement panel. Players must first find the weapon blueprint interface from the main screen, enter it, and then select the weapon to be upgraded.

After determining the weapon to be upgraded, the blueprint fragments required by the weapon will be displayed on the left side of the main screen. If we have enough fragments, just click the enhancement button at the lower right corner. Before each upgrade, the weapon needs to undergo multiple enhancements. Once it reaches the highest limit, clicking the blueprint weapon again will directly upgrade it.
After completing the upgrade, the overall attributes of the weapon, including fire rate, magazine capacity, and attack power, will be comprehensively improved. Of course, if the weapon has a high critical hit rate, this rate will also be significantly increased after the upgrade.

Seeing the importance of weapon upgrading, partners surely want to upgrade their five-star weapons. However, due to the need for a large number of weapon blueprint fragments, I will provide several methods to obtain these fragments.
The simplest way to get weapon fragments is definitely by purchasing them from the store, but this method may not suit all players. Alternatively, you can obtain them through exploring settlements or unlocking memes which also reward weapon fragments.

After reading about the detailed operation of weapon upgrading, do you now clearly know how to upgrade weapons in the Seven Day World? Since you've understood the method, hurry up and follow the ways I provided to obtain weapon fragments and then proceed with weapon upgrading.