what Swede variant is being sold on CGN?

Curious real pretty swede for sale on CGN not seen a configuration like this. How would the rear site be installed? One of the many target rifles?

This is the 96 which is described as having features found on sniper rifles? I would suggest that it was set up for target shooting, and if it has not been fired too much could be an excellent shooter. The Swedes shot enough that barrels were used up, and rifles were rebarrelled. A careful inspection would be needed to try to assess bore wear. The rear sight will probably be attached with two screws, left and right. If we are discussing the same ad., there is little said about condition.

If it's the rifle I'm thinking of, note that the correct tunnel sight is missing and the owner stuck a Mosin 91/30 sight on there. It should be a (rare) Carl Gustaf tunnel sight.