after being replaced by K9 Thunder. : Army of the Republic of Vietnam. : Royal Netherlands Army M110A1 and M110A2, replaced by the M109 in the 1990s : Spanish Army as 64 M110A2, deployed in divisional fire support regiments until 2009. : British Army as M110A2 firing high explosive and nuclear shells only. (The FV433 Abbot SPG, the M109A2, and the M110A1 were replaced by the AS-90 in the early-mid-1990s.) Used in Operation Granby/Gulf War. : Used by United States Army and United States Marine Corps, M110A2s retired in 1994. See also List of U.S. military vehicles by model number 2S7 Pion – Soviet L/55.3 203 mm self-propelled cannon 2S4 Tyulpan – Soviet 240 mm self-propelled mortar List of crew served weapons of the US Armed Forces M55 – 203 mm self-propelled gun, predecessor to the M110 M107 – a 175 mm self-propelled gun on the same chassis Sholef – Israeli 155 mm self-propelled howitzer T92 Howitzer Motor Carriage – a 240 mm howitzer M1 fitted on a M26 Pershing chassis References TM 9-2350-304-10 dated October 1979 External links fas.org. globalsecurity.org M110 Walk Arounds on Prime Portal https://www.militaryfactory.com/armor/detail.asp?armor_id=59 Self-propelled artillery of the United States Self-propelled howitzers of the United States Tracked self-propelled howitzers 203 mm artillery Military vehicles introduced in the 1960s