Last month I blogged a photo of a mystery submachine gun. Pierangelo Tendas (aka. The Italian Commie) posted a comment suggesting it was an Armaguerra OG-42 prototype. He was very close, it has been revealed to be the ultra-rare Armaguerra OG-43. Guns.ru writes …

This earlier weapon is extremely rare, with probably only one specimen surviving to this day in a private collection. The OG-43 is historically important because it is probably the world’s first submachine gun to combine stamped-steel construction, bolt with most of its weight in front of the breech face AND the magazine in the pistol grip, all in one weapon.