The Browning Gold 10 is a whole different gun than the Gold 12 and 20 gauges. Parts between the 10 and 12/20 are not very similar at all.

Benelli's have a combination of machined and stamped parts like most other current semi auto's. The new models now even have plastic trigger groups. Quality wise the Benelli'sare not on the same on the same planet as the Browning Auto-5, but then again no semi auto shotgun is. The Benelli line of semi auto's is quite nice, but so is Beretta's and Brownings.