The most noticeable feature of the RG652MPBFX is the poplar burl top on its mahogany body and birdseye maple fretboard. It also features a fixed, hard-tail bridge and dual DiMarzio humbucking pickups. The RG652KFX is similar except for the wood species used for the top and fingerboard. The RG652FX is similar but lacks the exotic top and fingerboard.