The RG421QM is an RG series solid body electric guitar model introduced by Ibanez for 2024. It is produced in Indonesia.
The RG421QM features a quilted maple top on a meranti body bolted to a maple neck with a thin Wizard III profile and a 24-fret jatoba fingerboard with white dot position markers. Components include a pair of direct-mounted Ibanez Quantum humbucking pickups, an F106 fixed bridge, and die-cast tuning machines.
The RG421 is a similar model without the quilted maple top. The RG421PB is a similar model with a poplar burl top.