For sale is a Redfield Krag Peep Sight Model 100K. Please see information about this sight in the forum under 'Redfield Krag Peep Sight' dated Dec 2. The sight includes the attachment screw. The aperture is missing. The windage knob locks by means of a movable tab. The tip of this tab is missing.  Other than that the sight is in good shape.   The sight is $175 shipped in USA only, by Priority Mail with delivery confirmation. I accept PO MO or Paypal.  I can be reached at alan-n-wendy at comcast.net.  Thanks. Alan