The RG421PB is an RG series solid body electric guitar model introduced by Ibanez in 2016. It is produced in Indonesia.
The RG421PB features a poplar burl top on a mahogany body bolted to a maple Wizard III neck with a 24-fret rosewood fingerboard with white dot position markers. Components include a fixed bridge and dual Ibanez Quantum humbucking pickups.
For 2018 the rosewood fretboard was replaced with jatoba. For 2019 the mahogany body was replaced with meranti. For 2020 the bridge was replaced with the F106.
The RG421CW is a version with a claro walnut top and the RG421RW is similar but with a rosewood top. The RG421 is a version without the exotic top. The RG7421PB is a seven-string version.