The AT-6 Wolverine, left, and A-29 Super Tucano, right
And both aircraft pack a wallop. The A-29 comes equipped with two internal .50-cal machine guns with space for additional underwing armaments like 20mm gun pods or MK-81 and Mk 82 bombs, according to Embraer; by comparison, Textron boasts, the Wolverine is "the first fixed-wing aircraft to employ 2.75" laser-guided rockets successfully" and uses an adaptable system to carry all manner of ordnance.
It doesn’t say in this article, but I think both aircraft are already operational in other air forces.
More @ Move over A-10: The Air Force is picking up some brand new light attack aircraft