The RG665 features a basswood body bolted to a maple neck with a 24-fret rosewood fingerboard with dot position makers. Components include dual Ibanez humbucking pickups mounted in a pickguard, an Edge double locking tremolo bridge with a locking nut and Gotoh tuning machines. It has a master volume which has a push/pull switch to coil-tap the bridge humbucker. Along with a tone knob it also has a mini-toggle which connects the bridge humbucker directly to the output jack — Ibanez calls this feature the "kick off switching system".