The GRGA21 features an archtop double-cutaway basswood body bolted to a maple neck with a 24-fret rosewood fingerboard with dot position markers. Components include dual Ibanez covered humbucking pickups and a fixed bridge. The GRGA32 is a similar model with a mahogany body. The GRGA22 is a related model with a double locking tremolo bridge. It replaced the GRGA11, which is similar except with chrome hardware and uncovered pickups.