The base is full of dangers, such as security robots or automatic gun turrets. The guards are assisted by guard dogs and automatic gun emplacements. The weapon was standardized for limited procurement as "20mm automatic gun T3". After the IED exploded the 3 vehicles were attacked by RPGs and automatic gun fire. The Bofors 120 mm automatic gun was a dual purpose naval gun. The A-190(E) uses a lightweight gun mount with an automatic gun and fuze setter. T4 automatic gun, an aircraft gun. Artillery, Automatic Gun and Ammunition Engineering is one of Shanxi provincial key disciplines. In 1900, John Moses Browning filed a patent for a recoil-powered automatic gun. While Kuga was swimming across the creek, the Taliban engaged him with automatic gun fire.