The RG421EX is an RG series solid body electric guitar model introduced by Ibanez in 2015. It is manufactured in Indonesia.
The RG421EX features a mahogany body with black and white multi binding attached to a maple Wizard III neck with a 24-fret rosewood fingerboard with binding and white dot position markers. Components include a pair of Ibanez Quantum humbucking pickups and a fixed bridge.
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 RG421 is very similar except that it lacks the body and fretboard binding and features cosmo black rather than black hardware. Another similar model with a quilted maple top, the RG421QM, is also available.