Complex sentence: Originally it was derived from the HAFDASA'Ballester-Rigaud C1' model rifle, based on the famous Beretta Model 1918/30 submachinegun that was used by the "Policia de la Capital" ("Capitol Police").
Split into simpler sentences: Originally it was derived from the HAFDASA'Ballester-Rigaud C1' model rifle. It was based on the famous Beretta Model 1918/30 submachinegun that was used by the "Policia de la Capital" ("Capitol Police").