Today in WW II: 23 May 1943 Adm. Döntiz, commander of the German Navy, calls off the Battle of the Atlantic, recognizing that the U-boat is no longer an effective weapon.  More 
23 May 1944 Allied breakout from Anzio beachhead.
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M-15 Multiple Gun Motor Carriage (GMC)

The M-15 Multiple Gun Motor Carriage (GMC) was a mobile anti-tank and anti-aircraft weapon based on the White M3 Halftrack. The M15 had an armored enclosure on the rear that housed a 37mm M1A2 automatic cannon plus two .50 cal. M2HB machine guns. On the M15 the machine guns were mounted above the 37mm gun, while on the M15A1 the machine guns were below.

The M-15 Multiple Gun Motor Carriage was based on the eariler T28E1 platform, eighty of which were built by Autocar in mid-1942. The T28E1 was armed with the 37mm sutomatic cannon and two .50 cal. water cooled machine guns.

The M-15 was manufactured by Autocar in early 1943 (500 built), then replaced by production of the M15A1 in late 1943 and February 1944 (1652 built). The M15A1 continued in use through the Korean War.

Recommended Book About the M-15 Multiple Gun Motor Carriage

M-15 Multiple Gun Motor Carriage Photos

Find additional photos and hi-res versions of the M-15 Multiple Gun Motor Carriage at the Olive-Drab Military Mashup.

M-15 Multiple Gun Motor Carriage Photo Gallery

M-15 Multiple Gun Motor Carriage
M-15 Multiple Gun Motor Carriage.

T28E1 Multiple Gun Motor Carriage, 443d Coast Artillery Regiment, Tunisia, 1942-1943
T28E1 Multiple Gun Motor Carriage, 443d Coast Artillery Regiment, Tunisia, 1942-1943.

45th Division M-15 Multiple Gun Motor Carriage (GMC) at Hampton Roads Port of Embarkation, 27 May 1943
45th Division M-15 Multiple Gun Motor Carriage (GMC) at Hampton Roads Port of Embarkation, 27 May 1943.