The machine gun of the Finnish manufacture, was used in the Finnish-Soviet war and during the Second World War.The archive also contains separate files with animation, demonstration of animation on video. The video shows basic animations, reload expectations, shooting, and others. The model can be used for game development and direct use in the game. The archive texture for the model.

Aimo Johannes Lahti has been developing submachine guns since 1921. The Suomi 1931 model was developed in the early 1930s based on the design of the 7.65 mm KP / -26 submachine gun (konepistooli Suomi m / 26), which was produced in small quantities since 1926. The word Suomi is the self-name of Finland.

In 1931, it was adopted by the Finnish army under the name Suomi-KP Model 1931. The total production volume, which lasted until 1953, was about 80 thousand.

Initially, the Suomi was seen as a support weapon for the compartment level for close-range combat, a kind of ersatz light machine gun, the lack of which the Finnish army experienced. Hence there are a number of design features of the weapon, such as a relatively long, and, moreover, quick-change barrel, large-capacity shops, the presence of bipods on some models, and so on. Although at the same time the same designer also created a light machine gun (Lahti-Saloranta L / S-26), adopted for service in 1926.

However, the short range of effective firing and the relatively low striking ability of pistol bullets did not allow the use of PP as a full-fledged support weapon for the infantry squad. As a result, the Finns had to revise their military doctrine in the course of hostilities and supplement the armament of the infantry squad with a light machine gun for rifle-machine gun ammunition, the role of which was played first by the Finnish Lahti-Saloranta L / S-26, then also the more successful Soviet DP, simultaneously with the increase in the number of PP from 1 to 2-3 per department.

Nevertheless, on the whole, Suomi itself turned out to be a successful model, although not without its certain, and rather significant, flaws. To handle the Suomi, a high level of training was required for the personnel, as its constituent vacuum retarder was very sensitive to contamination, dusting and fogging of weapons.

The submachine gun was exported. It was produced under license in Denmark (m / 41), Sweden (m / 37) and Switzerland (MP.43 / 44, 22,500 copies).