How to upgrade a three-star, five-star weapon to six-star?

Three kinds of evolutionary materials are needed to obtain weapons beyond the limit: superconducting metal hydrogen, nano-ceramics and mechanical parts.

Mechanical parts are mainly obtained through daily check-in activities.

Nano-ceramics need players to remember the battlefield, challenge armaments, and exchange stars and stones online.

Superconducting metal hydrogen is mainly obtained by player krypton. Usually the version will be given away, but the quantity is too small.

In short, it is still difficult to obtain six-star weapons. Players not only need to brush a lot of pictures, but also need a certain amount of krypton gold to get beyond the limit.