Navy GMs operate, maintain and repair all gunnery equipment, guided-missile launching systems, rocket launchers, guns, gun mounts, turrets, projectors and associated equipment. They make detailed casualty analyses and repairs of electrical, electronic, hydraulic and mechanical systems. They also test and inspect ammunition, missiles and their ordnance components. GMs train and supervise personnel in the handling and stowage of ammunition, missiles and assigned ordnance equipment.

 

GM  Gunner's Mate (1885- ) (E-7 to E-9 only)

 

GMA  Gunner's Mate Aviation (to 1926)
GMCB  Gunner's Mate Construction Battalion
GMCBG  Gunner's Mate Construction Battalion Armorer
GMCBP  Gunner's Mate Construction Battalion Powderman
GMSRP  Gunner's Mate Ship Repair Powderman
GMA  Gunner's Mate Armorers (1948-?)
GMM  Gunner's Mate Mounts (to 1957)
GMM  Gunner's Mate Missiles(1957-present)
GMT  Gunner's Mate Torpedo (to 1921)
GMT - Gunner's Mate (Turrets) (1922-1952)
GMT  Gunner's Mate Technician (1962-1986)
GMG  Gunner's Mate Guns ( -present)