Maxim M/32-33

Lore & Background

The Maxim M/32-33 was developed by Aimo Lahti in 1932 as a modification of the Russian M1910 Maxim. Lahti was ordered to adapt the Maxim to use modern metallic ammunition belts instead of the original cloth belts. The resulting weapon achieved a rate of fire of 850 rounds per minute, compared to the 600 rounds per minute of the Russian M1910 and earlier Finnish M09-21. This increase was accomplished through an accelerator mechanism and a muzzle booster. Other changes included redesigned grips and rear sights, as well as an installation point for an optical sight.

Unlike all other Finnish Maxims, the M/32-33 was designed from the outset for anti-aircraft use. The new M/32 tripod was issued with extra parts allowing easy conversion to an anti-aircraft mount, and accessories for anti-aircraft shooting were included as standard. The last improvement was the addition of a snow-filling cap to the water jacket, allowing snow to be used instead of water in winter, eliminating the need to carry and care for 3 liters of coolant water in sub-zero conditions. This feature was later adopted on late World War II Russian Maxim variants.

A few hundred early M/09s were modified to the M/32 standard by Gun Depot 1 between 1933 and 1935. These weapons have also been called M/09-32s.

Reader's Guide

The Maxim M/32-33 represents a significant adaptation of the classic Maxim design for modern warfare conditions. Its development by Aimo Lahti addressed the need for a more reliable feed system using metallic belts, which were less prone to jamming than cloth belts. The increased rate of fire, achieved through mechanical improvements, gave it a tactical advantage in both ground and anti-aircraft roles. The weapon's design for anti-aircraft use from the outset was unique among Finnish Maxims, and the M/32 tripod's convertible nature allowed rapid role changes. The snow-filling cap was a practical innovation for winter operations, later influencing Russian Maxim variants. The modification of earlier M/09s to M/32 standard by Gun Depot 1 extended the service life of existing weapons. The M/32-33 thus stands as a focused effort to modernize a proven design for specific Finnish operational needs, particularly in cold weather and against aerial threats.

Did You Know?

• Its rate of fire was 850 rounds per minute, compared to 600 for the Russian M1910.
• The weapon included a snow-filling cap for the water jacket, allowing snow to be used as coolant.