Gamma 2 is Gamma's second album, released in 1980. On this album Ronnie Montrose keeps his streak of not having the same personnel on two albums in a row, changing the line-up once again. Davey Pattison (vocals), Montrose (guitar), and Jim Alcivar (synthesizer) remain from Gamma 1. Glenn Letsch replaces Alan Fitzgerald on bass and old Montrose bandmate Denny Carmassi replaces on drums.