Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“Rock Island 51679 Tac Ultra FSHC 9mm Luger Caliber with 5" Barrel, 17+1 Capacity, Overall Black Parkerized Finish Steel, Picatinny Rail/Beavertail Frame, Serrated Slide & Black G10 Grip” has been added to the compare list