
M1 Flamethrower
Weight (filled): 70 pounds
Fuel Capacity: 5 gallons
Effective Range: 65.5 feet
Maximum Range: 141 feet
There were three variations in the wand fuel valves, and earliest models were the E1 which had a shorter pressure bottle, but were otherwise identical.

M1A1 Flamethrower
Weight (filled): 70 pounds
Fuel Capacity: 5 gallons
Effective Range: 65.5 feet
Maximum Range: 141 feet
The M1A1 is the same tank group with some improvements in valves and connections. The major change is the simplification of the wand by using a shorter barrel with no bend and simplified nozzle attached to the barrel not threaded. Pressure was slightly higher but without much increase in range

M2-2 Flamethrower
Weight (filled): 68 pounds
Fuel Capacity: 4 gallons
Effective Range: 65.5 feet
Maximum Range: 132 feet
The WWII models had hexagonal gas caps and hourglass frames. They were called theM2 or M2-2, M2 for the tank groups and -2 for the wand type.

M2A1-2 Flamethrower
Weight (filled): 68 pounds
Fuel Capacity: 4 gallons
Effective Range: 65.5 feet
Maximum Range: 132 feet
The M2A1-2 is the variation of the M2 modified during the Korean war period. These had straight sided backpack frames, vented gas caps, a cylinder sized regulator and a safety valve. These are much more common today than WWII models.