Would anyone have any information or insight into the Rice rear sight for a Krag? This is the one that mounts via the extractor screw on the bolt. The issue sights are great for young eyes, Not so great with what the good Lord seems to think I can get by with! I've located a Rice sight but was wondering if anyone had any opinion/experience with them. Other no drill type recvr sights for a Krag are obscenely high. Thanks!