The Sportsman 12 was made for a couple of years in the mid-80s. IIRC it has a vent rib, a 3" chamber and a hardwood stock. I want to say they made some at the end of the run with REM Chokes, but I can't honestly remember who told me that.
A good friend has a well-used, and reliable, Sportsman 12 Auto, which is an 1100 with a 2.75" chamber, VR, fixed MOD choke and a hardwood stock.
Sounds like a good deal to me, unless you're just dying to spend more for a new Express Magnum or a used walnut 870.
John