Forget about your FN's AR-15's AK's etc. All you have to do is toddle off to your local hardware store or Wal-Mart and pick up a magazine fed 10 Gauge shotgun. While your there, buy a couple boxes of 20MM Grenades. Adapt your ten gauge to fire these grenades. (Easily done with a Dremel tool) and you are the king of the county. When you catch your opponent in broad daylight in the open, fire a salvo at him. (That cracking sound is only your collarbone) it will heal in a couple of months. Your opponent armed with his measley .308, will be confused by the cherry bomb explosions missing him by fifty or sixty feet and probably only hit you once or twice. Pour boiling water on the wounds. Repeat as needed. Sheesh! This is a Zoo!