I have a desire to pick up a decent condition Remington 870 Wingmaster, with checkered wood furniture, a vent rib barrel, and 3" magnum would be a bonus. I walked into a shop yesterday, and one with all these criteria was sitting on the shelf, with a decent price tag in my opinion ($299, its got some honest wear but no rust and action looks great). I would be using this thing for clays and home defense. Maybe hunting if I ever get invited, but if I wanted to really get into hunting I'd be willing to get another. Only thing about this one is its got a full fixed choke barrel. I figure that is going to be harder to hit clays with, I have shot some full choked shotguns at clays and had a hard time hitting anything. Modified or improved cylinder and I can hold my own. Am I right on this? And in order to get a different choke, I could have it modified to take screw in chokes (is that possible?) or swap barrels, right?