The futuristic-sounding device is designed to combat the threat posed by cheap unmanned aerial drones.
Developed by UK defense contractor Raytheon, the weapon works by firing microwave pulses that can knock multiple drones out of the air at once by frying their control systems.
While it's similar in concept to existing radio-based anti-UAV systems, the Phaser is able to take out almost anything electrical and is more like an EMP ( electromagnetic pulse ) weapon.
Despite its name however it bears little similarity to the weapons used in the Star Trek franchise.