Shop › NCSTAR AR15 BARREL NUT CROWS FT TOOL NCSTAR AR15 BARREL NUT CROWS FT TOOL $15.99 NcSTAR AR15 Crows Foot Barrel Tool, For Use on AR15 Barrel Nut, Steel Construction, Matte Finish, Black VTARCFBRL Quantity: Add To Cart Added! NcSTAR AR15 Crows Foot Barrel Tool, For Use on AR15 Barrel Nut, Steel Construction, Matte Finish, Black VTARCFBRL