Agreed on the "barleycorn" type iron sights on most Mausers. I'd say it's best feature is toughness. Glad the Swedes used the blade type front sight with the u shaped notch in the rear sight on their Mausers. IME it's a lot easier to shoot accurately.

Also agreed on the Mojo sight. I had them on a Yugo Mauser and an SKS, big improvement.