Capable of over 1,000,000 rounds per minute sustained fire, no moving parts. Fires all cartridges using electrical impulses. Supposedly theres a sniper rifle prototype in the works. They lowered the rate of fire to 60,000 rounds per minute to keep it accurate. LOL ONLY 60,000 rounds per minute.
http://www.tonyrogers.com/weapons/metalstorm.htm
http://www.tonyrogers.com/weapons/metalstorm.htm