M45

M45 or variants may refer to:

Military equipment

Carl Gustaf m/45, a 9×19mm Swedish submachine gun
M45, a variant of the M26 Pershing heavy/medium tank of the United States Army
Madsen M1945, a 9x19mm Danish submachinegun, also referred to as the M45
M45 (missile), a French Navy submarine-launched ballistic missile
M45 Quadmount, a weapon mounting consisting of four "heavy barrel" .50 caliber M2 Browning machine guns
MEU(SOC) pistol (also M45 MEUSOC), a magazine-fed, recoil-operated, single-action, semiautomatic pistol
M45, a gas mask currently issued in the United States

Transport

Infiniti M45, a rebadged Japanese-spec Nissan Gloria of the Infiniti M line
M-45 (Michigan highway), a state trunkline highway in the US state of Michigan
M-45 (Spain), a highway bypass built in the Community of Madrid of regional importance
M45 (Cape Town)
, a Metropolitan Route in Cape Town, South Africa
M45 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa
M45 (Durban), a Metropolitan Route in Durban, South Africa
M45 motorway, a motorway in Northamptonshire and Warwickshire, England

Other

M 45, an age category of masters athletics
M45, a single-nucleotide polymorphism that is a component of Haplogroup P1
Pleiades (also M45), an open star cluster containing middle-aged, hot B-type stars
Yahoo M45, a computer cluster announced in November 2007 by Yahoo

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