M3 may refer to:

• Messier 3, a globular cluster of stars
• M3 motorway, a motorway in England
• M3 motorway (Northern Ireland), a spur of the M2
• M3 motorway in the Republic of Ireland, a proposed upgrade to part of the N3 road
• M3 motorway (Hungary)
• M-3 (Michigan highway)
• M3 Bradley, a U.S. cavalry fighting vehicle
• M3 submachine gun, a U.S. submachinegun
• M3 Half-track, a widely used infantry transport in World War II
• M3 Lee or M3 Grant, a U.S. medium tank of World War II
• M3 Stuart tank, a U.S. light tank of World War II
• M3 tripod, commonly used for mounting the U.S. M2 Browning machine gun and Mk 19 grenade launcher.
• BMW M3 a high performance automobile
• ABSA - Aerolinhas Brasileiras, Air Service (airline), Nordic Flying (IATA airline designator M3)
• Cubic metre (m³)
• major third in music (M3)
• minor third in music (m3)
• M3, a US snowboard manufacturer
• M3 metric sized Screw
• M3 is a measure of the money supply
• M3 was the code name of a United States military mission at Roosevelt Roads Naval Station, Puerto Rico
• M3 is an obsolete BBC peak programme meter standard
• M3 adapter, version 3 of the GBA Movie Player
• M3 (railcar), a railcar manufactured by the Budd Company for the Long Island Rail Road and Metro-North Railroad
• M3, an album by the heavy metal band Mushroomhead.

Photo of Messier 3 taken with a 24 telescope in Boulder, Colorado. ... In the Republic of Ireland, the M3 motorway is a planned upgrade to part of the N3 road from Dublin to Cavan and the Northwest. ... Motorway symbol in UK, France and Ireland. ... The M3 is a short section of urban motorway 1. ... The N3 road is a National Primary Route in the Republic of Ireland, running between Dublin, Cavan Town and the border with County Fermanagh. ... Schematic path of Motorway M3 The M3 motorway connects Budapest, the capital city of Hungary with the north-eastern regions of the country. ... M-3 M-3 is a north-south state highway in the U.S. state of Michigan in the Detroit metropolitan area. ... General Characteristics (M2 Bradley) Length: 21 ft 2 in (6. ... M3 Greasegun Type sub-machine gun Nationality US Era WW2 History Date of design 1942 Production period 1942 - Service duration 1942 - 1990 Operators US War service WW2, Korea Specifications Type Calibre . ... The M3 half-track was an armoured vehicle used by the United States during World War II. // History The US Army Ordnance Department had evaluated the half-track design by testing French Citroën-Kegresse vehicles. ... The M3 Medium Tank was an American tank used during World War II. In Britain the tank was called Lee and its modified version, with a new turret, was called Grant. As a rush job intended to be brought from design to production in a short period, the M3 was... The Light Tank M3 was an American light tank of World War II in use with British and Commonwealth forces prior to the entry of the USA into the European theatre. ... Look up tripod in Wiktionary, the free dictionary. ... This article is about the . ... MK-19 40mm grenade launcher during MIL-EX 2003 The MK19 (also known as MK-19, M19, Mark 19, or Mk 19) is a belt-fed grenade machine gun capable of firing five grenades per second. ... The BMW M3 is a sports version of the popular compact BMW 3-Series automobile, made by BMW Motorsport. ... ABSA - Aerolinhas Brasileiras is a cargo airline based in Sao Paulo, Brazil. ... The cubic meter (symbol m³) is the SI derived unit of volume. ... A major third is the larger of two commonly occuring musical intervals that span three diatonic scale degrees. ... A minor third is the smaller of two commonly occurring musical intervals that span three diatonic scale degrees. ... A snowboard with boot bindings A snowboard is a board ridden in snowboarding to descend a snow-covered slope. ... Screws come in a variety of shapes and sizes for different purposes. ... The examples and perspective in this article or section may not represent a worldwide view. ... It has been suggested that this article or section be merged with Puerto Rican Operating Area. ... A peak programme meter (PPM) is an instrument for indicating the level, loudness or volume of an electronic audio signal. ... This article or section appears to contain a large number of buzzwords. ... A Budd M3A at Croton Harmon, August 2006. ... The Budd Company (now ThyssenKrupp Budd) is a metal fabricator and major supplier of body components to the automobile industry. ... The Long Island Rail Road or LIRR (often referred to as the L-I-double-R) is a railroad that serves the length of Long Island, New York. ... The Metro-North Railroad (officially the Metro-North Commuter Railroad Company, and usually abbreviated as Metro-North) is a suburban commuter railroad service between New York City to its northern suburbs in New York and Connecticut. ... M3 is the third album released by the band Mushroomhead. ... Mushroomhead is a seven person Industrial metal band based in North Royalton/Cleveland, Ohio. ...

See also

• 3M

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