Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“Smith & Wesson 13250 M&P Shield Plus Micro-Compact 9mm Luger 10+1/13+1, 3.10" Black Stainless Steel Barrel, Matte Black Armonite Serrated Slide, Matte Black Polymer Frame, No Thumb Safety” has been added to the compare list