I have been told that the Husqvarna would build whatever the customer asked for, so rifle sights would not be out of the question. I have seen their rolling blocks in shotgun gauges with rifle sights.
Husqvarna made the model 37 double rifle. The one at SARCO would probably be an older model since it has an underlever and back action locks. The model 37 double rifle was later made on the the same action as the model 103 shotgun which looks like this:
(That is a model 103 CS in 12 gauge built in 1912) I forget what caliber the later model 37 came in. I do not have my reference books with me.
Take care,
Mike
