Chosen after a competition between similar weapons, the BAR design was modified by FN Herstal to Polish requirements and then licence production was in Poland.

The large variety of light machine guns used, as well as the fact that each of them used a different caliber, made troop training and logistics a difficult task.

After the Polish-Bolshevik War, in 1923 a competition was opened for a new, standard light machine gun for the Polish army that was to replace all previously used types of LMG.

The German armed forces captured a number of Polish-made Browning guns and used them until the end of World War II under the designation of lMG 28 (p).

[2] The RKM wz.28 was a basis for development of an aerial, flexible machine gun, designated karabin maszynowy obserwatora wz.37, used mainly by the Polish PZL.37 Łoś bombers.