I bought a tracker 2 12 gauge rifled barrel off here last year, the barrel has a big chunk of steel silver soldered on and that has a long one piece weaver rail drilled and tapped into it. It is soldered on just behind the rear sight and is really solid. I have a 1.5-4.5 bushnell sportview shotgun on it right now and shoot winchester BRI slugs out of it. It kicks like hell, but the shotgun scope has a longer eye relief than most and that is good! Mount seems to do the trick, without messing with accuracy. Great gun for deer from a stand, it only weighs about 6 pounds with the scope so is easy to carry and climb with (unloaded of course) and who ever felt the kick when shooting at meat!
regards,
Graycg