Found this:
Except for the specialized installations in early high-speed interceptors, the MK 4/40 rockets were almost exclusively employed from multi-tube launch pods. A wide variety of these pods were used, and the most important were:
LAU-3/A: 19-tube launcher
LAU-32/A: 7-tube launcher
LAU-59/A: 7-tube launcher
LAU-60/A: 19-tube launcher
LAU-61/A: 19-tube launcher
LAU-68/A: 7-tube launcher
LAU-69/A: 19-tube launcher
M158: 7-tube launcher; M158A1 was identical to LAU-68/A
M159: 19-tube launcher; M159A1 was identical to LAU-61/A
M200: 19-tube launcher; M200A1 was identical to LAU-69/A
The LAU-series was generally used by the fixed-wing aircraft of the Air Force and Navy, while the M-series launchers were used by the Army's helicopters. Most (possibly all) of these pods could be used with either the MK 4 or the MK 40 rockets.