LEUPOLD DETACHABLE RINGS

Leupold Rings, steel, quick release, they look Stainless but cant be as one has a bit of rust.  Had them on a Remington Mod. 700 S.S. 50  Cla.  muzzle-loader,   note diff curves on mounting surface, dont know model number.  Includes screws to mount.  Can ship on your dime.  $40. firm.  Tks, Jim K