and Air Force: AC-130W, AC-130J (GAU-23/A) Coast Guard: Polar Security Cutter Munitions See also Bushmaster 25 mm chain gun Bushmaster III 35/50 mm chain gun Bushmaster IV 40 mm chain gun 30mm Shipunov 2A42—Soviet/Russian autocannon 30mm L21A1 RARDEN—British autocannon Future Combat Systems Infantry Carrier Vehicle References http://www.atk.com/Products/documents/108279_01_Mk44.pdf Notes External links Alliant Techsystems (ATK) Mk44 Bushmaster Automatic Cannon Fact Sheet Alliant Techsystems (ATK) GAU-23 Bushmaster Automatic Cannon Fact Sheet 30mm Bushmaster II on NavWeap.Com Mk44 Bushmaster II 30mm on GlobalSecurity.Org 30 mm artillery Autocannon Vehicle weapons United States Marine Corps equipment Alliant Techsystems Military equipment introduced in the 1970s