A bronze medal, consisting of a faceted twelve-pointed star with a beveled edge, the points surmounting a wreath of laurel and bearing on a disc within a smaller wreath of laurel, a torch between two swords crossed saltirewise, points up and flanked by two mullets. The reverse has the cuirass from the Department of the Army seal centered below "ARMY NATIONAL GUARD" or "UNITED STATES ARMY RESERVE" and above "FOR ACHIEVEMENT".

The Army Reserve Components Achievement Medal is awarded for exemplary behavior, efficiency, and fidelity while serving as a member of an Army National Guard or Army Reserve Troop Program Unit for each four year period since 3 March 1972. Effective 28 March 1995, the period of qualifying service for the award was reduced from four years to three years; however, this change was not retroactive. Service must have been consecutive and service performed in the Reserve Component of the U.S. Air Force, Navy, Marine Corps, or Coast Guard may not be credited for award of this medal. The member must have exhibited honest and faithful service in accordance with the standards of conduct, courage and duty required by law and customs of the service of a member of the same grade as the individual to whom the standard is being applied. A member must be recommended for the award by his/her unit commander.

The Army Reserve Components Achievement Medal may be awarded to enlisted personnel and officers in the grade of Colonel or below. Subsequent awards are reflected by the attachment of an oak-leaf cluster to the ribbon.

Quoted from the Institute of Heraldry.