Help Identifying gun stock

[Tinndn]

Good Evening. I recently received this Remington gun stock with a bunch of other stuff, but I don't have the slightest idea what it might go to. I see there is a "1", "5" and "20" stamped into it. I'm guessing 20 gauge of some sorts? Any help would be greatly appreciated.

 

[Scorch]

870, 1100, or 11-87 in 20 gauge.

 

[RAfiringline]

Possibly, a Rem 552 speedmaster .22.

 

[mikejonestkd]

RA is correct, it looks like an old style Remington speedmaster stock