Late to this party. That is not a carbine, but a M38 short rifle. Some were made in that configuration by Husqvarna and some were made by cutting the standard M96 down to that configuration. I don't think M38 is the proper name, but that is what they seem to be called, at least here in the us.
A true carbine is much shorter still, the forearm comes all the way to the end of the barrel, and the front sight there has protective wings on each side. It's been a while since I bought a Swede, your best bet might be to look on Gunbroker or Gunsamerica auction sites. I do know a true carbine would be worth far more than what you have shown.
You might look here,
https://forums.gunboards.com/forumdisplay.php?49-Swedish-Military-Firearms-Forum , a forum dedicated to only Swedish military arms.