Remington 11-48 16s did have a 16 receiver, IIRC. I also was thinking rem 31s were scaled correctly, too. Browning Auto 5s in 16 had a 16ga scared frame. They also had a 3-shot version, which lightened the front end, as well as a Superlight on an alloy 16ga receiver. Good luck finding either, but the alloy gun was under 6#, (again) IIRC. Marlin 90s are sought after in 16, and the Winchester 1200 in 16 is a sleeper, cuz it’s on an alloy receiver.