Modern Firearms are defined by the ATF as firearms built after 1898.
Compare“B&T Firearms BT-36045-G-CT APC 9K Pro 9mm Luger 33+1 25.50" Black Barrel, M-LOK Handguard, Coyote Tan Cerakote Picatinny Rail Receiver, M4 Compatible Grip” has been added to the compare list