This is a modified Conning tower for a Quanum nova that will hold a gps and compass unit

This actually fits the quanum nova and a cheerson cx20.
It fits this module and I am sure any others with this form factor http://www.ebay.com/itm/310780948528?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Feel free to modify for your needs.