Brontor
Brontor is a legendary two-handed cryogenic shotgun.
This armored beast was named after centenarian creatures able to survide under the tavriya snowlands of alterash.
Ingame
Radiomessages on pickup:
- You’ve just picked up an alta weapon, or an “energy tool”, as they call it. According to my database, these usually have an extended set of features. I suggest reading its description.
Sources
Found naturally in containers:
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Can be bought from merchants:
Can be obtained from special items:
Can be obtained via 
Spawnable Item Pack or 