When I got my 63-4, I had the choice of an older 63 (4"), which had a red insert, or the new 63 (5"), which has a plain, black serrated ramp. I chose the new one. I have also ordered a new one (3") to go with my older one. It will have the illuminated HiViz front and a V notch rear. I will have to change them both out to black.