Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“Smith & Wesson 14142 M&P FPC *CA Compliant 9mm 10+1 16.25" Black Oxide Steel Barrel Black Anodized Picatinny Rail Aluminum Receiver M-LOK Handguard Folding Black Synthetic Stock Black Backstrap Grip” has been added to the compare list