Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“Sig Sauer 1911R45SSSCA 1911 Full Size *CA Compliant 45 ACP Caliber with 5" Barrel, 8+1 Capacity, Overall Stainless Steel Finish, Picatinny Rail/Beavertail Frame, Serrated Slide & Blackwood Grip” has been added to the compare list