Need magpul UBR physical dimensions

[bladewalker]

I'm attempting a Battery and electronics package mod involving a magpul UBR and I am attempting to design it out prior to ordering all the parts.

I need the dimensions for the stock extension tube if anyone can give them to me. dimensions off of a Cloned UBR would be useful as a guide line but as I will be using a non-cloned one, dimensions of a magpul would be the most useful. the dimension I'm most interested in is the length of the tube (with or without the threading), the outside diameter and if possible the thickness of the tube.

If anyone could help me with getting these dimensions I would appreciate it. I've already been searching the net for weeks looking for this info and even contacted magpul through there website in hopes of enlisting there assistance.

For those of you who have read this far thank you for taking the time to read my request.