Mossberg or Maverick, eihter one will work well for you. I have Mossbergs in my collection that are old enough to collect Social Security, and i had a Maverick 88 for 17 trouble free years. For the money, i would say go for the Maverick. Even with buying a PG and an extra barrel, you will still pay less than you will for the same quality as the Mossberg. See if any pawn shops or gun shops in your area have any used shotguns or barrles for the model 500. They will fit on the Maverick.
Is it better to do the right thing for the wrong reason, or to do the wrong thing for the right reason? If you do the wrong thing for the right reason, is it still the wrong thing?
Si vis pacem para bellum.
There are two ways of doing something. Right and again.