Arcadia slider latch

I'm afraid I've never seen this mechanism before, or at the very least it's not immediately familiar to me. What I can say with confidence is that we don't sell anything like this. Generally smaller components like this aren't sold separately. You may be looking at a new handle set.

To play it safe, would it be possible to see a photo of the entire thing installed on the door? That will give me a better idea of how it functions and whether we sell an alternative. Can you also tell me the distance between the two handle installation holes, center-to-center?