I believe all the 12 and 20 gauge guns from Upper Sandusky are 3" guns, now. But, the term "Featherweight" doesn't really mean what it once did. The barrels are heavier, and choke tubes are standard. They can run steel shot, no problem.
Not all progress is good.
I suppose a 20, with the shorter barrel, wouldn't be unreasonable heavy, but, the earlier version, or, it's cousin, the Ultra, would be a lighter gun.

Best,
Ted