$225-$275, depending on which version and condition.
if its a 12 gauge about 475-550$
100-345 USD
100-350 USD depending on condition
10-350 USD or so
That would not generally be considered a valuable modification. It is worth what you can get for it.
Im not sure the year of the model 870. It is a Wing Master 12 ga. Ser# s189445v.
It is the 100th Anniversary Edition for Remington's making of the 870 pump shotgun. It runs for around $1200 and is a limited edition item. The Premier Dealer Wingmaster also has engravings on each side and a gold trigger. It has semi-fancy claro walnut stock and forearm.
New in the box, $500-600 (on a good day) Doesn't really demand much of a premium and if not new IN BOX, not any.
NO
Remington does not show a 870 rifle on their web site. Do you mean the 870 Shotgun? the Remington 870 is one of the most popular shotguns in the us. this shotgun ranges from $300 for the basic model to $1000 for the fancy Wingmaster edition
No