The Flak gun is one of the most preferred portable weapons of the Smoes. The guns can range from many WWII types; with a scaled down size; but increased damage rate. They are only carried by friendly Smoes for self defence or deliberate attacks on their enemies. Luke the Spook and his Smoes carry normal weapons.

A Smoe armed with 2 flak guns defends a tunnel in Mount Kilroy during the crime spree by Luke the Spook and his Smoes.