Staff Cannons are powerful energy weapons used by the Goa'uld. Apparently derived from the same mechanics behind the staff weapons, Cannons provide higher discharges, and are primarily ship based weapons, being seen on Ha'taks and death gliders. Samantha Carter was once able to rig a Staff Cannon from a downed glider to be used as a portable weapon by Teal'c, and was still able to discharge its high yield. Staff Cannons are also seen as artillery weapons by Jaffa. Stationary ground unit cannons used by the Goa'uld to guard Stargates and other points of interest.