The RG770 features a basswood body bolted to a maple Wizard neck with a 24-fret bound rosewood fingerboard with shark's tooth position markers. Components include DiMarzio-made IBZ/USA pickups with two humbuckers flanking a single-coil, a double locking tremolo bridge with a locking nut and Gotoh tuning machines. The pickups on the RG770 were mounted in pickup rings in 1990 and 1991, but starting in 1992 they were mounted directly to the body. Also in 1992 a new low-profile tremolo was swapped out for the original Edge.