4-string · Bolt-on
Gibson Tobias Killer B: bolt-on 4-string reviving the early-Gibson-era Killer B. Solid sapele body, 5-piece maple/purpleheart bolt-on neck, wenge fingerboard, 24 jumbo frets, Tobias Asym neck. Twin Bartolini humbuckers with an 18V 3-band preamp, Babicz bridge, Gotoh tuners. A punchy workhorse and a more affordable alternative to the neck-through Classic. Made in Indonesia.
| Construction | Bolt-on |
| Strings | 4 |
| Body | Sapele |
| Neck | 5-piece hard maple and purpleheart |
| Fingerboard | Wenge |
| Neck Pickup | Bartolini MT4C-B1 humbucker |
| Bridge Pickup | Bartolini MT4C-T1 humbucker |
| Controls | Master volume, Bartolini 18V active 3-band EQ |
| Bridge | Babicz FCHZ4 |
| Made In | Indonesia |
Artists documented playing the Tobias Killer B IV: Robert Trujillo.