M (New York City Subway service) – Wikipedia

The M Queens Boulevard/Sixth Avenue Local is a rapid transit service in the B Division of the New York City Subway.Its route emblem, or “bullet”, is colored orange since it uses the IND Sixth Avenue Line in Manhattan.. The M operates at all times. Weekday rush hour, midday, and early evening service operates between 71st Avenue in Forest Hills, Queens, and Metropolitan Avenue in Middle Village …

https://en.wikipedia.org/wiki/M_(New_York_City_Subway_service)