A buddy of mine got a Universal carbine from his dad, We took it to the range today and with the rear sight set at its lowest position was still about 5" high @ 50yds (aiming the rifle at a 6:00 hold). I see that the front sight of a U.S. M1 carbine is not compatible with the Universal. What can I do to get the POI down. Did Universal make front sights with different blade heights? Anybody run into an issue like this before? Any input would be greatly appreciated.