Berlin-Lübecker Maschinenfabrik (BLM) was a manufacturer of handguns, infantry rifles, ammunition up to 2 cm, flareguns and precision military equipment in Germany from 1936 to 1945. The company, based in Lübeck, Germany, was one of a number of metal-related businesses owned by Bernhard Berghaus, a German industrialist and member of the Nazi party who played an important role in the rearmament of Germany during the Third Reich.