The Ribeyrolles 1918 was an attempt to manufacture an automatic rifle for the French forces.

It was chambered in the experimental 8×35mm round, used straight blowback, was fed from a 25-round detachable magazine and had an effective range of 400 meters.

[1] Another source indicates that it was chambered in a cartridge designated 8×32mmSR.

[2] Its official name was Carabine Mitrailleuse 1918[citation needed] ("Machine Carbine 1918" in English); in a 2007 book it appears as "fusil automatique Ribeyrolles 1918".

[2] The Ribeyrolles had the distinction of being fitted with a lightweight bipod on the front (indicating an intended use as a squad automatic weapon) and a rifle bayonet identical to that of the Berthier Model 1907/15.