Black plastic on a gun does not make it any more lethal than other guns with wood stocks. Stopping the manufacture of such guns would hand over a lucrative market to the Russians and Chinese rather than reducing the number of assault weapons in the world. [1] Drugs cartels would simply find new routes to get the weapons they need, after all they are already dealing in illegal activities making the guns they want illegal on both sides of the border rather than just one is unlikely to stop them.  [1] Falconer, Bruce, ‘Semiautomatic for the people’, Mother Jones, July/August 2008,