General Dynamics Armament and Technical Products said it will produce additional 20mm gun systems for use on U.S. Navy F/A-18E/F Super Hornet aircraft. The order for the weapons came under a contract modification from the Naval Air Systems Command worth $7.8 million, the company said. "General Dynamics has successfully produced the weapon system for the F/A-18 for more than 25 years," said Steve Elgin, vice president and general manager of armament systems for General Dynamics Armament and Technical Products. "The M61A2 F/A-18 gun system continues to be relevant, affordable and extremely effective." The M61A2 gun system is a six-barrel Gatling...