Abstract: The present invention relates to an improved method and device for aiming and firing a rifle-mounted grenade launcher without having to approximate the range of a target and then manually adjust the position of subsequently fired grenades. The grenadier initiates the process by pointing the grenade launcher at the target. The range and azimuth of the target are determined by a microprocessor controlled laser range finder/digital compass combination. A ballistic solution is calculated by the microprocessor and the superelevation required to place the grenade on target is displayed on one of several video displays. The grenadier then uses the vertical angle measurement capability of the laser range finder/digital compass assembly to rotate the grenade launcher to the proper angle while maintaining the proper azimuth. The grenade is then fired on target.