After producing the Ero, a nearly exact copy of the Israeli Uzi, the Croatia firm Arma started making some design changes. With the Mini-Ero, they picked a size in between that of the Mini-Uzi and Micro-Uzi, and also used a stock taken from the vz.61 Skorpion (Model 84 in Croatian service).

A big thanks to the Croatian Police Museum (Muzej Policije) in Zagreb for giving me access to film this rare piece for you! Check them out at: https://muzej-policije.gov.hr