The RR400 features a vee-shaped flame maple top with cream binding on a basswood body mated to a set-in 3-ply maple neck with a 22-fret rosewood fingerboard with binding and pearloid dot position markers. Components include a Gibraltar fixed bridge, Quik Change tailpiece, a pair Ibanez humbucking pickups with a gold covered Super 58 at the neck and an uncovered V2 with white bobbins at the bridge, Sure Grip knobs, and Smooth Tuner II machine heads. The output jack is mounted on the side of the guitar.
The RR50 is a related model without the flame maple top and with a different neck pickup, dot fretboard inlays and chrome hardware.
This RR400 was discontinued after 1982. It was replaced for 1983 by the tremolo-equipped RR550.