4-string · Bolt-on
Short-scale (30") / medium-scale thumping bass with a custom Lindy Fralin passive pickup set (a 10%-overwound Reverse-P plus a second Reverse-P housed in a Thunderbird cover) and versatile passive wiring - two push-pulls, a kill switch and a series/parallel switch. Medium-jumbo stainless frets. Offered P-Style or J-Style. Handcrafted in San Diego, California by McGrath Guitars, with bodies and headstocks hand-painted by Madelyn McGrath; roasted flame maple necks, mahogany bodies, Badass high-mass bridge and Badass Lightweight tuners, ships in a Gator hardcase. Signature line debuted at NAMM 2026. Price range about $1,800-$2,600.
| Construction | Bolt-on |
| Strings | 4 |
| Body | Honduran mahogany |
| Neck | Roasted flame maple (carbon-fiber reinforced) |
| Fingerboard | Roasted flame maple (12" radius) |
| Neck Pickup | Custom Lindy Fralin Reverse-P set (10% overwind + Reverse-P in Thunderbird cover), passive |
| Bridge Pickup | Custom Lindy Fralin Reverse-P set (10% overwind + Reverse-P in Thunderbird cover), passive |
| Controls | Passive: two push-pull controls, kill switch, series/parallel switch |
| Bridge | Badass II high-mass |
| Made In | USA |