Shepard will need to find the weapon they want to upgrade, then purchase the upgrade to boost base stats. The cost starts fairly low at around 1,000 credits, then increases to 10,000 for the fifth and final available upgrade. In New Game+, upgrades can be purchased up to Level 10, which costs about 35,000 credits.
How do you upgrade your weapon to level 10?
To get to level 10 with a weapon, you need to complete the game then import your character on a new playthrough, where you will be able to buy/collect the remaining upgrades.
Are weapon upgrades permanent the forest?
Upgrades were added in v0. 08, and can be used to permanently increase speed and damage of various weapons and tools, or even attach a flashlight to some weapons.
Which NPNS upgrade fortnite weapons?
As you can see, there are only six NPCs that allow you to upgrade your weapons in Season 6 – at least on release:
