They are a great shotgun and the 16 is my favorite gauge. First of all those built on a 16 or 20 frame are available, just have to do a little looking. New the Browning BPS comes to mind, I have 3 Rem. 11/48s semi autos that I like, 3 Rem 31 slide actions, a Md. 37 Ithaca, a Sweet 16 from 62, these are all on the proper frame size. If you can find a 870 from the50s, even though they are built on a 12 ga. receiver they are lighter than the latter ones. For example I have a 1952 Rem 870 Skeet in 16, barrel and reciever serial numbered together, 26" VR barrel, deluxe stock and forend that are checkered weighs in at 6.76 pounds. Have SxSs in 16 and 2 O/Us both on proper frames, they are Marlin Model 90s. My son shoots 2 Brownings of current manufacture a BPS and an older Citori. So they are out there just need to look around. Lastly I suggest you go to the 16 Society webb site.