<P> The rank of gunnery sergeant in the Marine Corps was established by the Navy personnel act of March 3 , 1899 ( 30 Stat . L. , 1009 ) reflecting the duties of Marines in ship 's detachments . The original insignia was three chevrons point up with three straight `` ties '' with an insignia of a bursting bomb over a crossed rifle and naval gun . From 1904 to 1929 the insignia went to three stripes only over a bursting bomb on top of crossed rifles . In 1929 , like the rank of first sergeant , two `` rockers '' were added beneath the stripes with the same insignia in the middle . In 1937 the middle insignia was dropped . The rank was replaced by technical sergeant in 1946 until restored in 1959 , when the crossed rifles insignia were added to Marine chevrons . </P>
where did the rank gunnery sergeant come from
The rank of gunnery sergeant in the Marine Corps was established by the Navy personnel act of March 3 , 1899 ( 30 Stat . L. , 1009 )