Have you got any parts of the sight I think I may have the main body and elevation screw but you would need the windgauge block and windgauge screw These are available from John Knibbs
but are quite expensive £8.50 each https://www.airgunspares.com/162217b...block12mm.html or for a complete sight https://www.airgunspares.com/catalog...category/1048/