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The GAU-19/A (also known as the GECAL 50), is an electrically-driven Rotary cannon that fires the .50 BMG (12.7×99mm) cartridge. It was first manufactured by General Electric, then by Lockheed Martin, and now by General Dynamics. Design work began in 1982. The GAU-19/A was originally designed as a larger, more potent version of the M134 Minigun. Due to the loss of nine helicopters in Grenada, GE started building prototypes of the weapon in both a three-barreled and a six-barreled configuration.
The GAU-19 takes 0.4 seconds to reach maximum firing rate. In October 2010 General Dynamics began developing the lighter weight GAU-19/B in response to an urgent needs statement issued by the Armed Scout Helicopter Program Office. By April 2011 flight testing had begun and by January 2012, the U.S. Army ordered 30 GAU-19/B versions for use on helicopters. Both GAU-19 variants have been integrated on naval vessels (tripod and remote weapons station), vehicles (turret and remotely operated), and on both rotary and fixed wing aircraft (externally mounted under wing fixed forward and man fired from the aircraft door or cargo ramp).
— In-game Description
Destroyer Drone's Demolisher is a weapon featured in Battlefield Heroes for the National Army. Available for the Gunner kit, it was introduced in the Robots bundle on March 15, 2012. Its counterpart is Brass-Bender's Battle Arm for the Royal Army.