Octuple barbette heavy turbolaser

The octuple barbette heavy turbolaser was the primary anti-capital ship weapon used by the Galactic Empire, and were the counterparts to the octuple barbette heavy ion cannon.

History
Developed in 8 BBY by Endor Heavy Weapons, a subsidiary of Endor Drive Yards, the heavy turbolaser would become part of the primary weapons systems of Imperial II and Imperial III-class star destroyers, as well as Arrestor II-class star dreadnoughts. They proved very popular with Imperial gunners, who often competed to see who got to fire them. A ion cannon variant was developed in 6 BBY to complement them.

By 14 ABY, these weapons were considered obsolete, but historians agreed that it was one of the best heavy turbolasers ever produced.