All of these articles are on turrets.
“The Lrik Cannon was a type turret that used similar projectiles to that of the Geonosian's main...Lrik Cannon
“The Hoth defence turret was seen during the Battle of Hoth in Episode V: The Empire Strikes Back...Hoth defence turret
“The Hoth Dish Turret is a Rebel heavy artillery turret designed for the defense of Hoth during...Hoth Dish Turret
“The Beam Cannon was basically a portable Beam Turret. The Beam Cannon fired a straight, unbroken...Beam Cannon