Question: how do you get an upgrade module in destiny 2?
Answer: At the moment of writing, there are only a few ways you can earn Upgrade Modules in Destiny 2: Purchase from the Gunsmith: Head to the Gunsmith in the Tower and you can buy Upgrade Modules for 1 Enhancement Core, 10 Legendary Shards, 5,000 Glimmer and 25 of two randomly selected planetary materials.