Victor's gun is the "Ghost Grudge" and what a perfect name that is, symbolizing Gideon's entire purpose. For the past 20 years, he had obsessively pursued his master Spencer's final research. Through this, you could say Victor carries the grudge of Spencer's ghost...
#REBHFun
Guillermo del Toro refused to make FRANKENSTEIN with too much visual effects:
"I want real sets."
"I don’t want digital. I don’t want AI or simulation. I want old-fashioned craftsmanship. I want people painting, building, hammering, plastering."