Depending on condition, about $170-$250 (for an excellent specimen) There is a fair collector interest in the Remington Nylon rifles, although the semi-autos get the most attention.
These are valued at between 250-375 dollars depending on the condition of the gun in question.
50-500
I bought my used Black Nylon 66 about 12 years ago for a little more than $100. Of course there are several versions of this rifle in different colors of plastic and different magazines. I hear the clip-fed version is not as diserable.
100-325 USD
what is the market value of a remington 20 gauge semi-automatic sportsman 58 shotgun?
The 870 is a pump action shotgun. The 1100 and the 11-87 are the two standard Remington semi-auto shotguns. In 2008 Remington introduced an 870 with Pheasant and Duck engraving and a semi-fancy claro walnut stock. This was a premier dealer gun. http://www.remington.com/products/firearms/premier_dealer_exclusives/model_870_wingmaster.asp
100-300 USD
50-200 USD
100-300 USD
100-1000 depending on specifics
200 to 355 depending on condishion and model