590A1
found some rough walnut wood for it off ebay. stripped, steamed dents out, tung oil finish.
installed the heat shield specific for 590A1 that was on back order for eight months.
haven't added the spacer or screws yet because its an awfully tight fit on the bead end of the barrel.
00003986 is the part# on the bag. makes me wonder if its the right one.