Midwest Industries 1894 Marlin Top Rail 5" 6061-T6 Aluminum Black Hardcoat Anodized Made In USA, The Marlin 1894 One-Piece Picatinny Scope Rail Is constructed From 6061 Aluminum With a Hard Coat anodized For a Lifetime Of Service And Is machined To Mil-Spec tolerances. It Includes Mounting screws And Also Works With Henry 38/357, 44 Mag, And 45 Colt receivers. Model: 1894 Marlin Finish: Black Hardcoat Anodized Material: 6061-T6 Aluminum Pieces: 1 Gun Type: Rifle Length: 5" Rings Included: No