The Sith Empire created many contracts for many companies when they successfully sacked Coruscant. The Capital Ship Killer was created exclusively from Bagara Industries. Using advanced heavy engines, supercharged power plants, and six heavy magnetic accelerator cannons capable of penetrating an entire capital ship's armor plating with ease, Rebel fighter pilots were trained to go for the CSKs before taking on any smaller fighters to protect their mother ships.
While excessively powerful, the CSKs were not equipped to handle fighter to fighter combat, and so always flew with a fighter escort.
Original parts by Bagara5000!