OK, just tried him. He told me that he has had complete sight units - made in the USA - but the prices were exorbitant. Since you are in Canada, my advice is to try and find a Snider backsight - they are identical in every way, as I far as I can see, and I'm looking at two of each right now. I'll repost this on canadiangunnutz, unless, of course, you are on there as well.