Compact laser deluxe
From Tardis Wiki, the free Doctor Who reference
The Compact Laser Deluxe was a powerful laser weapon that is extremely small, this was proven as Captain Jack Harkness managed to store it away somewhere "you really don't wanna know", in case of emergencies. Its only known carrier is Jack Harkness and it is used by him to destroy both the robots Trin-e and Zu-Zana. (DW: Bad Wolf)