I've had one now for about 20 yr's. It's one of the old invector models. I did the same thing you did, bought it used with choke tubes. Plus I've picked up other chokes over the years. The best pump shotgun made today, in my opinion. I've shot rabbits, pheasants, deer, turkeys, pidgeons, grouse, you name it, with that gun. It has never let me down. It's as tight and smooth as the day I bought it. It just has a few more "charactor" marks