As the title says I am looking for either of the two above listed mortar sights for a project. It would be no problem finding a normal US made M4 sight, however I insist on finding a Cdn one. I missed an ebay auction a couple months back which had a fairly minty one along with it's  M84 case made by ALCAN. That would be my ideal find. 
A C2 sight is also suitable, however I must ask that nobody goes liberating one from their QM on my behalf. I know the UK and other countries also use these sights, so they may be on the market somewhere. I am not interested in the Indian copy of this site. 
A couple photos of what I am looking for: 
 
 
 So if you got what I need, then please shoot me a PM and we'll work out a deal.