I know times change, but back in the day, the 870 could do it all. I've got half a dozen different barrels, running from a short as 18'' ("3 GUN" match) to as long as 30", some fixed & some with the different chokes tubes. I was always looking for another (Cheap) barrel. Butt stocks were the same. My first trap gun was my 870, with a 30" Fixed choke barrel, a butt stock from an 870 scope mounted slug gun. The barrel cost around $100.00, the stock another $50.00 and my first silver buckel (16yd first place) was worth $12.00. "Good Times"!
FITASC's advice is "Good", but I did find a Remington barrel 26" marked "Target" that I used to shoot Skeet with..