Anschutz- spec Harness Rail manufactured by Altius. Can be used as a replacement of factory part or for new installation. Slightly thinner than factory original. Required part to use Altius Harness on Izhmash factory stock.  Note that permanent stock modifications are necessary to install this rail on an Izhmash factory stock.  Nominal Dimensions are 5" Long x 7/8" Wide x 1/4" Thick.  Made in Montana.  NOTE THAT THIS ITEM IS NOW ANODIZED BLACK.