One Gun that is relatively new to the gun world compared to the rem. 870 and moss. 500 is the Benelli Nova. Priced at about $300 for the black finish and about $350 for the camo finishes. I don't know if it is sold in a combo package I do know they have a slug barrel available for the nova as well as bird barrels in 26'', 28'' and I think 30''. I also don't know the price of additional barrels. I have one I use for pheasant and clay shooting. I love it. It has a 3 and 1/2 in chamber making it the last gun you'll ever need to buy. That is not saying it will be last one you will want to buy. LOL