Va. Machine guns have already been illegal within the U.S. for decades, but lately the state has observed a different surge of weapons able to automatic fire. Small pieces of plastic or steel applied to transform legal guns into do-it-yourself machine guns are assisting to fuel gun violence. (AP Photograph/Alex https://machguns.com/product/heckler-koch-g3sg1-7-62x51mm-machine-gun-pre86-dealer-sample/