The Maschinengewehr 08, or MG 08, was the German Army's standard machine gun in World War I and is an adaptation of Hiram S. Maxim's original 1884 Maxim gun. It was produced in a number of variants during the war. The MG 08 served during World War II as a heavy machine gun in many German infantry divisions, although by the end of the war it had mostly been relegated to second-rate fortress units. The Maschinengewehr 08 (or MG 08)—so-named after 1908, its year of adoption—was a development of the license made Maschinengewehr 01. The firing rate depends on the lock assembly used and averages 500 rounds per minute for the Schloss 08 and 600 rounds per minute for the Schloss 16. Additional telescopic sights were also developed and used in quantity during World War I to enable the machine gun for its long-range direct fire and indirect fire support roles. The German Rifle Commission began firing tests of the Maxim gun at Zorndorf in 1889. In 1892, Ludwig Loewe's company signed a seven-year contract with Hiram Maxim for production of the gun in Berlin. The Imperial German Navy ordered Maxim guns from Loewe in 1894. The Navy deployed them on the decks of ships and for use in amphibious warfare. In 1896, Loewe founded a new subsidiary, the Deutsche Waffen- und Munitionsfabriken (DWM), to handle production. The agreement with Maxim concluded in 1898 and DWM received orders from Austria-Hungary, Argentina, Switzerland and Russia. The Imperial German Army first considered using the Maxim gun as an artillery weapon The German light infantry Jäger troops began trials of the gun in 1898. The Guards Corps, XVI Corps and XVI Corps made more experiments in 1899. The tests produced a recommendation of independent six-gun detachments to march with the cavalry, with the guns mounted on carriages pulled by horses. The Army purchased the modified MG 99 and MG 01 versions of the Maxim gun from DWM in limited quantities. The MG 99 introduced the sled mount that would remain standard in the MG 08.