Nice light blond forarm for a Swedish M/21.  Unissued condtion, this is a slightly bulkier M1918 pattern with heat sheild installed; think of it as a product improved M1918 forarm.  Will fit a US inch pattern BARs or your swedish M/21.

Great shape, some rust on the steel front cap but I think it could be wire wheeled and reblued.  I'm not in the re-bluing business anyways.