The Energy rifle, also referred to as a Pulse rifle, is a prototype energy-firing gun with a shoulder sling created by Mercury Labs. It was stolen by Harrison Wells after his arrival on Earth One. It fires a powerful blue projectile that is strong enough to severely damage walls and is even capable of rendering foes such as King Shark unconscious.
this weapon was used by harry wells against savitar while attempting to protect iris west-allen
DC's Legends of Tomorrow