I would believe its probably the same as my CVA wolf which was a weaver 418 for both the front and rear mount. I then put on a set of Warne Medium Rings. I did have to take off my rear sight thought, as the front of the scope hit it. I am almost certain a set of high rings would have cleared it. But it wouldn't have been useable to hunt with as there wouldn't have been a clear view. I don't plan on using open sights so I didn't care about that. Hope this helps
Doug