Itajubá Model 954 Mosquetão

The Itajubá Model 954 Mosquetão ("Mosquetão" is Portuguese for "Big Musket") is a battle rifle of Brazilian origin produced in small numbers a few years after World War II. The weapon is a derivative of the Gewehr 43 but chambered in the .30-06 round.

Brazilian arms manufacturer IMBEL (Indústria de Material Bélico do Brasil) produced approximately 300 M954 rifles. The Imbel design strengthened the G-43 bolt carrier, improved the durability of the gas system and added a push-button gas cutoff for grenade-launching capability. A new magazine was used that was similar to the Browning Automatic Rifle magazine, but with an added front lip. Additionally, the M954 utilized the same trapdoor buttplate as the Brazilian 1954 Mauser.

The M954 was submitted for testing for possible adoption as the new service rifle for Brazil, alongside the Belgian FN Model 1949, also in .30-06 caliber. However, Brazil eventually adopted the FN FAL as their standard service rifle.