Kammala jumla mai zuwa: A cikin 1941, lokacin da Romania ta shiga yaƙi tare da Nazi Jamus, IOR ya zama soja kuma an ba shi aikin samarwa musamman ga Sojojin Romania. An samar da ma'aunin farko na soja a wannan lokacin don abin da ya kasance a lokacin da aka saba amfani da bindigar sniper na Romania, Vz. 24 a ciki. Bayan yakin, kodayake samarwa ya ci gaba a ƙarƙashin mamayar Soviet, kamfanin ya ci gaba da alaƙa da sanannun kamfanonin Yammacin Turai kamar Carl Zeiss AG, Leica, Pentacon da Schneider Kreuznach, waɗanda suka taimaka wa IOR a cikin zamani da faɗaɗa a cikin 1970s. Sakamakon kin amincewa da Romania don shiga kungiyar
Bayan mamayewar Czechoslovakia, Tarayyar Soviet ta daina musayar bayanan fasaha da fitar da kayan aikin soja (gami da sabon SVD Dragunov). Saboda haka, Romania ta tsara bindigogi na PSL a matsayin madadin SVD Dragunov, kuma an ba IOR aikin haɓaka ikon yin amfani da bindigogi a matsayin maye gurbin PSO-1 na Rasha. Sakamakon shi ne LPS 4x6 ° TIP2 telescopic sight, wanda ya zama daidaitaccen makami mai linzami na Romania.