Novas are one of my favorite classic markers due to their extremely unique design and operation. They use a poppet dump valve to release a metered amount of pressure to fire the ball, and a moving breech to close the chamber. Information for the Nova series of markers is hard to find, so I've created this page with some pictures and tech info I've collected over the years.
There were several versions of the Nova over the years, beginning with the Nova 700 (in the disassembly pictures), SuperNova (pictured above), and a later electronic version called the SuperNova ET. Later, after the marker was discontinued, a Nova clone called the Darkstar was released by a company called Section8 paintball which seems to have disappeared as soon as they appeared.