Just use two of the three pieces of a 12 ga. shotgun cleaning rod. If you use the outers, the handle unscrews. Some others are just a friction fit and can be pulled off.
XS Power Rods are SWEET! I just put one on my Savage. MUCH nicer than the factory rod. If the XS Backup rod is as good as their regular ones are, then it would make the perfect takedown rod IMO!