Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“Smith & Wesson 160410 Governor 45 Colt (LC) Or 2.50" 410 Gauge, 2.75" Stainless Barrel, 6rd Stainless Cylinder, Matte Silver Scandium Alloy Z-Frame, Black Polymer Grip” has been added to the compare list