With its high murder rate and huge armed forces, Brazil has long been in the cross-hairs of foreign weapons makers. Now they have a powerful champion: pro-gun President Jair Bolsonaro. The right-wing former army captain, who relaxed gun ownership laws soon after taking power in January, has raised hopes among foreign firms that his next move will be easing investment restrictions on Brazil's 200 billion reais (US$55 billion) defense sector.