Aside from the weapon, you will also need to collect an item required for the upgrade process.
Drain Lance II+500 EXP
Drain Lance III+500 EXP
Auto Crossbow
Can be acquired in Keycatrich Trench.
A Better Bioblaster
Dynamo -can be acquired from the following enemies: MA-Veles, MA-Veles-Bis, MA-Hoplomachus.
Bioblaster Plus+2000 EXP
Circular Saw
Acquired after the final battle in chapter 2.
A Better Circular Saw
Sky Gemstone- can be acquired by completing “A Feline Feast” quest.
Circular Saw Plus+ 2000 EXP
Gravity Well
Can be acquired in Aracheole Stronghold.
Gravity Well Plus+ 2000EXP
Noiseblaster
Can be acquired in Fort Vaullerey.
A Better Noiseblaster
Magnetron -can be acquired in Gralea; sometimes dropped from MA-Hoplomachus.
Noiseblaster Plus+ 2000 EXP
Drillbreaker
Can be acquired in Formouth Garrison.
A Better Force Stealer
Monster Claw -can be acquired from the following enemy: Bandersnatch.
This site is not associated with and/or endorsed by the Square-Enix / Eidos or Square-Enix.
All logos and images are copyrighted by their respective owners.