Carefully machined from cold-rolled, steel bar stock, featuring generous windage adjustments for rear ring and precision fitted rotary dovetail for front ring. Note: "STD" Mount Bases accept Burris, Millett and Redfield rotary dovetail rings. Mfg: Leupold SPECS: 12L14 cold rolled steel. Polished Blue, Matte blue, Satin nickel finish. Long Range gives additional elevation. All include TORX mounting screws. #1 Models- Browning FN Action, Harrington & Richardson, JC Higgins Model 53, Mauser FN & MK X, Parker Hale, Sako round action and