Good News! just checked Ebay a few minutes ago and there were two 46's. One was a 46 and the other a 46M; Kind of pricey, be glad when they are again available.................
The MP-460 in the first link above is listed at $480, used: https://www.ebay.com/itm/Baikal-IZH-46M-Match-Target-Air-Pistol-/132903743757?oid=223118902084 I just got a new one yesterday from Krale for $500, including shipping and a credit card fee: https://www.krale.shop/en/baikal-mp-46m.html
You must have gotten the last one as that link shows them now "temporarily sold out". If they ever come back in stock I will be looking at adding another to my little arsenal. That is a great price.
The page at that link showed "out of stock" too, when I placed my order just over a week ago. When I emailed Krale to ask when new stock was expected, first the reply was "third week in January". An hour after placing my order I get a tracking number. After asking about this, I was told "new stock just came in this morning".