The Armed Forces Reserve Medal (AFRM) is a service medal of the United States Armed Forces that has existed since 1950. The medal recognizes service performed by members of the reserve components and is awarded to both officers and enlisted personnel. The medal is considered a successor award to the Naval Reserve Medal and the Marine Corps Reserve Ribbon, which were discontinued in 1958 and 1967, respectively.
If the medal is awarded for periods of service, it is accompanied by an hourglass device. Depending on the length of service, a bronze, silver, gold, or bronze and gold hourglass are worn on the suspension ribbon and service ribbon, indicating 10, 20, 30, or 40 years of service, respectively.
If the medal is awarded in connection with a mobilization, it is accompanied by an “M” device. Subsequent mobilizations under an unrelated presidential call-up order result in a numeral device being worn to indicate the number of mobilizations