Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“Kimber Mfg, Inc 3800004 R7 Mako Liberty Sub-Compact Frame 9mm Luger 13+1 3.37" Black DLC Match Grade Barrel, Black FNC Nitride Optic Ready/Serrated Stainless Steel Slide, Black Polymer Frame” has been added to the compare list