Other new features include two parallel 'claws' for grappling smaller starships placed in the ventral secondary docking bay, an option for gunners to eject from their station if it is about to be destroyed, and the transparisteel viewports on the main bridge being able to resist the impact of a concussion missile. The Mark II is also built with a heavily reinforced hull, stronger deflector shields, faster hyperdrive, and greater firepower than the original Mark I class. Several differences exist between the Mark I and Mark II, including the replacement of the tractor beam targeting array between the command tower's sensor globes with a communications tower.
The first operational ships of this class began to appear in service several months after the Battle of Yavin.
The class began with the prototype Imperial II known as Empire, commanded by Admiral Feyet Kiez. The Imperial-class Star Destroyer Mark II, also known as the 'ImpStar Deuce', is a Star Destroyer model that was derived from the Imperial-class Star Destroyer. ' Sir, the odds of surviving a direct assault on an Imperial Star Destroyer-' - C-3PO before being interrupted by Leia Organa
