T-Bone

The T-Bone is a weapon that is used by every Blacklight operator. It fires a metal stake attached to a wire which is used to blast through the hearts of vampires. It some sort of a rocket launcher designed to destroy or seriously injure vampires. The can never run out of ammunition because of the metal wire which rewinds the stake to refire. The most common place to shoot the stake is in the heart which causes the vampire to burst after a few seconds.
The winch mechanism of the T-Bone can be used offensively, as demonstrated by Jamie Carpenter when he used said mechanism to pull a gigantic wooden cross down on top of Alexandru Rusmanov to maim him.