Ruger MK I, II, III & IV Fiber Optic Adjustable Rear Sight Improve the performance of your Ruger MK I, II, III and IV with the new adjustable rear sight. Our bright and fully adjustable rear sight will enhance your confidence and shooting experience. All steel construction is rugged with high visibility and definite CLICK adjustment of windage and elevation.
to a High Volume of Orders and Various Production Delays, Delivery Times may be Slower. Thank You For Your Patience.