OK, I'll be a little elitist here and suggest the Benelli Nova. Got one about 5 years ago for around $400 with both the bird and slug barrel. Has been awesome, no missfeeds, missfires, or any other issues. It's built like a tank, it's ugly, and it accepts a recoil dampner (if you need it). Come's apart in about 4 pieces (unlike the Mossberg M500 that we have at work which seems to need a degree in engineering to put back together) and is easy to clean. It's done decent with the sabot's that I put through it and has a couple of deer in the 5 years. Only two shotguns have passed the military's torture test the Mossberg M500 and the Benelli M4. The Army's cheap so they went with the 500, the Marine's the M4.