Accumulating moonstones in Borderlands The Pre-Sequel is necessary to purchase backpack/vault/ammunition upgrades. The 4 to 5 minute farm run that I do through Concordia can produce a good number of moonstones. The run below produced 7 moonstones which is a little above average. I have had runs that produced 15+ moonstones. I want to say the best one I had was around 19 or 20. Anyway, it can be a good source to get some much needed upgrades in a relatively minimally grindy manner.
