Most good quality rifle scopes can handle the recoil of a shotgun. I would not, however, make it temporary. I would mount it, sight it, and leave it.
Eye relief is the main difference. Most shotgun scopes have a longer eye relief, so you don't get popped in the brow during recoil.
If you are concerend about durability, you can buy a fixed power scope. They are more durable, and generally cost less, than comperable variable power scopes. 4X would be sufficient for any range that you would be shooting with a slug.