I have an 870 fieldmaster 12-gauge with magpul forgrip, expensive side saddles, and extra shell barrier on butt stock. Gun also has kick-eez butt pad.
Great shotgun, just don't need yet another 870. You can add an $80 long barrel for bird hunting so you'd get two guns for one.
There's a possibility of finding the original wooden foregrip but no promises. I travel a lot to the Wichita area and can arrange a meet up. A new one of these has a sticker price of $500, never mind taxes, accessories etc.
I also have cases and cases of dove loads I'd be willing to sell to whoever buys this at a more than fair price.