The RGIX20FESM features a basswood body with spalted maple top, ebony fingerboard, a Nitro Wizard neck, a fixed bridge, active EMG pickups and a kill switch. The RGIR20FE is similar but without the spalted maple top and ebony fretboard. A seven-string version, RGIX27FESM is also offered. The RGIX20FEQM, which was discontinued after 2015, is similar but with a quilted maple top and gold hardware.