 The M16 and M4 also proved to be better suited to the grenade launching role using the US M203 integrated 40 mm launcher.Israeli paratroops in particular preferred the M4 carbine to the Galil, while the M16 was retained for training recruits, reservists, Artillery Corps, and the Armored Corps (Heil HaShiryon).By 2000, both the Galil ARM and AR variants were phased out from standard issue and replaced by M4 and M16 variants.