French Modele 1936 MAS Military Rifle with bayonet (detachable, conceals in fore-arm), 7.5mm MAS caliber, 22" barrel, adjustable rear sight; manufactured from 1936 through WWII.
Overall length without bayonet affixed is ~40"; overall length with bayonet affixed is ~52".

If you need further information concerning markings, etc., please make your request via the Identification service.