A couple of amendments. First, "trap" models started with the first 2000 postwar guns (serial over 17000). They differed from other supers in two ways. First, they had a straighter stock. Second, they had 30" barrels with ventilated ribs. Until the magnum model was introduced in about 1955, only the trap model had a 30" ventilated rib barrel. Field models could be had with 30" solid rib barrels. About 1953 the trap model added a larger "beavertail" fore end. That continued until about 1960 or 61 when the trap model only added a square knob (a year or two later it was added to skeet models). The BroadWay came out in 1962, and for the first time after WWII 32" barrels were available, but only on the BroadWay. Probably the best craftsmanship on Supers is on models from about 1954 to 1962. I would not worry a lot about a gun that is somewhat loose. It is about a $300 fix to weld and fit the locking lug. Usually needed somewhere between 50,000 and 100,000 rounds. I would worry about a loose rib. Many seperate, and it is a $700 fix to remove, resolder, and reblue the gun. Watch out for a used gun which someone has tried to reblue with superglue, exposy or by soldering without removing the entire rib.
