Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“Smith & Wesson 11663 M&P Shield EZ Micro-Compact Frame 380 ACP 8+1, 3.67" Black Armornite Steel Barrel & Serrated Slide, Matte Black Polymer Frame w/Picatinny Rail, Thumb/Grip Safety, Ambidextrous” has been added to the compare list