 It is armed with 644 M77 DPICM (Dual-Purpose Improved Conventional Munitions) anti-personnel/anti-materiel grenades, which are dispersed over the target in mid-air and detonate on impact.There is a newer, guided DPICM-armed MLRS rocket called the M30.The UK Ministry of Defence has recently announced it will cease to use dumb cluster munitions and will destroy its remaining stocks of the M30.