Miter blades from both normal and charged attacks have a chance to instantly pop a Nullifier bubble.
The augment actually destroys the floating shield generator that powers the Nullifier bubble no matter where you hit it, meaning the bubble is permanently disabled on the target enemy.
Multiple blades resulting from Multishot will continue their flight paths as they collide with a Nullifier bubble, provided that one blade procs its chance to destroy the bubble, allowing the other blade to fly through. Otherwise, both blades will bounce off the bubble.
Appears to also work on the ice shields of Arctic Eximi (further testing required). Does not work on Arctic eximus ice shield. However it will destroy the nullifier bubble from Arctic Eximus Nullifier.
It does not work on the green nullifier grenades launched by the Isolator Bursa.