This rocket is a modified Madcow Super Batray.  I added a payload section and an av bay to the rocket in order to make it dual deploy capable.  The fins, the payload bay, and the leading edge of the aft body tube are all fiberglass reinforced.  This rocket has a 38mm motor mount and has been flown on the new Aerotech J510W (second only to the Loki J1000LW).  This rocket, weighing in at only 6 pounds with no motor, will haul butt when a full J is put into it.