the Light Tank M2 - an overview of options
T2 - a prototype of a light tank similar to the Vickers 6-ton Mark E, two carts with four wheels on each side, two machine guns in the tower
T2E1 - modified the prototype with the suspension VVSS, and two wheels on the cart, the higher its hull
T2E2 - 2 prototypes variants with two towers
T2E3 - draft bezvěžové unparalleled
the M2A1 - serial version of the T2E1, 9 (according to other sources up to 20) made in the Rock Island Arsenal
M2A2 - serial version with two towers, 237 pcs made in RAI
M2A2E1 - 3 M2A2 which temporarily got the diesel engine Guiberson T-1020
M2A2E2 - a test machine with thickened armour, modified brzdammi and suspension chassis
M2A2E3 - M2A2E2 with a diesel engine GM 6-71 and again modified the chassis
m2a3 model - dvouvěžová variant with towers pousunutými from each other, a modified chassis and armour; 73 pcs built in RAI
M2A3E1 - 8 m2a3 model that got the diesel engine Guiberson T-1020 p. 3
M2A3E2 - m2a3 model with gearbox Timken Electrogear
M2A3E3 - m2a3 model with a diesel engine GM-4-223
M2A4 - serial variant with heavier armor, one of the towers, with 37mm cannon; 375 pcs built AC&F and BLW