FN manufactured and marketed the Baby Browning from 1931 until 1979, though exports to the US only took place between 1953-1968. About 550,000 units were produced, including the hand chiseled engraved "Renaissance" and the "Lightweight" version. The Lightweight utilized a 6061 T6 aluminum frame and hexavalent chrome-plated (over electro-less nickel) slide and external detail parts. With the exception of special order nickel-plated units and the above-mentioned versions, all of the 1931 Baby Brownings were finished in chemical hot blue. The halt to exports to the US in 1968 was mandated by the Gun Control Act of 1968 - which was precipitated by Robert Kennedy's assassination involving an Iver Johnson manufactured revolver. This piece of legislation was signed into law by then President Lyndon Johnson. It forbade the importation of certain firearms, among them the 1931 Baby Browning - but it didn't forbid the domestic production of these same weapons. FN transferred production of the Baby Browning to Manufacture d'armes de Bayonne (MAB) during 1979. Based in Bayonne, France, MAB produced the pistol from 1979 until 1983 when bankruptcy forced it to discontinue production. Production of the Baby Browning ceased in Europe at that time.