AZshot,
It is difficult to tell from the photo, but it seems that the quarter rib has dovetails or some other provisions for mounting a scope (see the light spots at the front and rear of the rib). If I am correct, I suggest you ask the rifle's builder what type was intended. If I am mistaken, I suggest you make arrangements to have to have your classic K4 mounted in Warne QD rings. If properly mounted, it is pretty hard to be dissatisfied with these rings. As far as the sling swivels are concerned, from the photo it seems American QD swivels should fit, but if not, I have had no trouble opening the bases up to fit. BTW, I don't know that much about fitting scope rings, I'm just old and have seen a few.
Mike

Last edited by Der Ami; 09/23/25 09:14 AM.