FM 24/29! LMG Châtellerault 1924/1929
Light Machine Gun Chatellerault 24/29 (model 1924 modified 1929) Study launched in 1918 to replace all other LMG's ( Chauchat, Hotchkiss, Saint Etienne 1907 ) adopted 1922, started service in 1924, ammunition was 7.5 x 57 mm changed into 7.5 x 54 mm in 1929 ,( cartridge 7.5 mm modèle 29C )to avoid accidents in case a german 8x57 mm would be introduced, the new case is shorter and fatter than the 1924 version hence the name:24/29. Weight: 9800 g;20 rounds magazines, gas operated, 600 RPM, one trigger for single fire, one for automatic fire.maximum range , 2000 meters; do not mix up this LMG with Czech ZB 30 made in Brno in 8x57 after 1933 which became the BREN ( short for Brno/ Enfield ) after czech technicians escaped during the german invasion and started to work on .303 version in 1938. the french LMG inspired the ZB 30 not the other way round.
Photo and information from:
DCB Shooting Supply