Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“FN 66101006 502 Tactical 22 LR 10+1/15+1, 4.60" Black Steel Threaded Barrel, Flat Dark Earth Optic Ready/Serrated Slide & Polymer Frame w/Picatinny Rail, FDE Textured Polymer Grip, Ambidextrous” has been added to the compare list