Sorry for the delay in responding - busy plus had to dig it out

It appears that the main tube is 5.5" long and the nose cone is 4.5" in length
The main tube measures 0.921" in diameter, but that also includes primer, paint, and clear coat

I have to admit there is some uncertainty in my measurements. Since the nose cones are permanent I did a pretty good job blending the joint and it is difficult to tell where the cone ends and the tube starts

Let me know if you need more info