I've used a Daewoo USAS-12 with a drum mag before. Knew a guy who was married to a former high up in Abercrombie and Fitch. She cashed out her stock options a lot. Dude was worth millions and had all kinds of kick ass Class III stuff. It was a great gun. You could take down trees with it. Go bird hunting and drop the entire flock. Loved the H&K MP5. Ended up buying one but had to sell it later due to economy. Browning 1919 belt-fed rocked too.