Sontaran blaster
Sontaran lasers are a form of energy weapon, a recent development of the Sontarans. Sontaran lasers were used to great effect in the Sontaran invasion of Earth in 2009 and proved a great weapon against UNIT. They fired a red energy burst that could kill a human with a single direct hit without leaving any signs of exterior damage. These were a somewhat new weapon as in the former Doctor Who series they were only ever known to use their batons as weapons (however Stike and Varl were seen carrying rifles and so was a Sontaran in A Fix with The Sontarans, so these might be the same weapons). But Despite being known as "lasers", their bolts travel slower than light. (DW: The Sontaran Strategem / The Poison Sky)Commander Kaagh carried a more compact version of the blaster with the same ultimate design. However its bolts were thicker and caused more damage. Kaagh was forced to give it up to Sarah Jane Smith after his defeat on Earth. It now lies in her attic.