What does il Duce inspect in 1934?

Hi all,

the picture attached was taken in Furbara 1934. You see Mussolini walking in front of an aircraft placed there for being shown to him and brass exponents. But what is the type? I meant there should not be too much possibilities to label an Italian aircraft of 1934, but I was not able to confirm what I think. For me, the closest match is Fiat AS.1 or AS.2, but the trouble are the slots on the side behind the engine. In the mentioned types, the array uses to slightly taper, while in the picture attached the slot array forms a perfect rectangle. Also, the undercarriage is different to the mentioned types.
Also note the WWI-style machine gun on the wing. I wonder how aiming and firing may work if pilot needed not to crawl on the wing to do so.

Thank you for every answer, and regards,
RT