However, once purchased by Gibson in 1990, a few bolt-on models were produced such as the Killer-B (with the "B" in the name standing for "bolt-on") as well as the Growler Basses.
However, once Gibson took ownership of the product in 1990, a few specialized bolt-on versions were created, including the Killer-B and Growler Basses, which got their names from this distinctive feature.