The "Arma Grupa" Strojnica ERO (Arms Group "ERO machine-gun") was a Croatian Uzi clone made locally by "Arma Grupa" of Zagreb during the Yugoslav War. It was made entirely from steel stampings, causing it to weigh more (). The only difference from the Uzi is the selector switch, which is marked R ("Rafalno" {"burst"}, for full automatic fire), P ("Pojedinačno", for single shot) and Z ("Zaključan",{locked}, for safe) and its rate of fire is 650 rounds per minute. It uses the 32-round magazine as standard, but can use any 9mm Uzi-interface magazine of 25 rounds or larger.