The P40 was an Italian World War II tank design. It was armed with a 75 mm gun and an 8 mm Breda machine gun, plus another optional machine gun in an anti-aircraft mount. The official Italian designation was Carro Armato ("armored tank") P 26/40. The designation means: P for pesante (Italian: "heavy"), the weight of 26 tons, and the year of adoption 1940.