According to this article from Reuters:
"The United States has 90 guns for every 100 citizens, making it the most heavily armed society in the world, a report released on Tuesday said."
That's guns in private hands, not any military weapons. And it seems we like it this way. According to Alphecca, a nationally organized gun-control rally in PC Seattle drew only two participants. Other rallys in other cities had but "dozens", including the one in Washington DC. Only one appears to have had more than 100.
Now you know why the Dems are not publically pushing a new assault-weapons ban.