M (New York City Subway service)

Sixth Avenue Local
A train made of R160 cars in M service entering Hewes Street, bound for Middle Village–Metropolitan Avenue.
Northern end	Clockwise direction: Forest Hills–71st Avenue (weekdays) Essex Street (weekends) Myrtle Avenue (late nights)
Southern end	Counterclockwise direction: Middle Village–Metropolitan Avenue
Stations	36
Rolling stock	184 R160As (23 trains, AM rush) 176 R160As (22 trains, PM rush)
Depot	East New York Yard
Started service	1914; 103 years ago (1914)
Discontinued	October 4, 1969; 47 years ago (1969-10-04) (MJ service only)

Clockwise direction:

The M 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 bright orange since it uses the IND Sixth Avenue Line in Manhattan. On weekdays, the M operates between 71st Avenue in Forest Hills, Queens, and Metropolitan Avenue in Middle Village, Queens, via the IND Queens Boulevard Line and Sixth Avenue, the Williamsburg Bridge, and the BMT Jamaica and Myrtle Avenue lines. This makes the M the only service that travels through the same borough via two different, unconnected lines.

The M short turns at Essex Street in the Lower East Side of Manhattan on weekends, and at Myrtle Avenue–Broadway in Brooklyn during nights. The M is the only non-shuttle service that has both of its full-run terminals in the same borough (Queens). The 71st Avenue and Metropolitan Avenue termini of the M route are 2.47 miles (3.98 km) apart, marking this as the shortest geographic distance between termini for a New York City Subway non-shuttle service.