The Metra-Brooke Heavy Industries R25B is one of the universe's largest ship-guns, along with the R25C. It is 2 miles long, 1.5 miles tall, and 1 mile wide. It is defended by 5,000 laser turrets. It's main armament is one massive cannon with a diameter of 1 mile. It's nickname is the SSO, or Solar System Obliterator.