Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“Sig Sauer 365AXGF9BFO P365 Fuse Compact Frame 9mm Luger 17+1 4.30" Black Carbon Steel Barrel, Black Nitron Optic Ready/Serrated Stainless Steel & Frame w/Beavertail & Picatinny Rail, Black AXG Grip” has been added to the compare list