How would I name it? By adjectives like "evil", "vile" and "cowardly".
It is a knuckle-duster, used by utter thugs with no respect for other people and none for themselves.
The stamped words look like Latin but clumsily done. Not that matters - whatever they mean such weapons are good only for one thing: melting down to recover their metal.
I take it John Constantine is an arms-dealer - perhaps illegally so? The image's watermark suggests so. Apart from any legal action against the dealers, their sites like this "Weapons Universe" need deleting and their creators blocking permanently from making any others; and their entire stocks of weapons and associated goods seizing and destroying.
