Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“ZRO Delta 755000329990 FKS-9 9mm Luger 15+1 4" Black Nitride Match Grade Barrel, Black Nitride Optic Cut/Serrated Slide, Polymer Frame w/Accessory Rail, Black Polymer Grip, RMR Footprint” has been added to the compare list