The M91 Carcano Cavalry Carbine. This is an actual carbine that was adopted for Italian cavalry in 1893, and used by commando’s, artillery crewman, and rear eschellon troops up to and including World War II. Chambered in 6.5mm Carcano, they are a short, light, carbine version of the Carcano bolt action rifle. Weighing only 6 pounds and with an overall length of 36 inches, it is light and compact. It also has a mounted folding bayonet.