Filli Gamba (Gamba Brothers) was founded in 1946. G. Gamba sold his tooling to his brother, Renato, in 1967 when Renato Gamba left his brothers and S.A.B. was formed. Filli Gamba closed in 1989 and the Zanotti firm was also purchased the same year.
Renato Gamba firearms have had limited importation since 1986. In 1989, several smaller European firearms companies were purchased by R. Gamba and are now part of the Renato Gamba Group - they include Gambarmi and Stefano Zanotti.