From GameWatcher: “Devil May Cry 5 gives Nero a set of new toys to tear demons apart with, in the shape of a number of different Devil Breakers.
These are robotic arms that come with a variety of different attacks at the cost of fragility. Nero is able to carry a few with him at any given time but can you switch between Devil Breakers in Devil May Cry 5?”
Source: N4G PC Devil May Cry 5 Can You Switch Between Devil Breakers?