Home›Weapons Systems›Caliber›20mmBrowse By20mmThis dimension groups weapon systems by their caliber. Wikipedia notes that weapons range "from simple implements such as clubs and swords to complicated modern firearms, tanks, missiles and biological weapons," firearms whose bore size is measured precisely as caliber. Browsing by caliber keeps weapon systems built to the same specification grouped together.Facts20mmConnectionsSourcesComments (0)Reader Challenges (0)FactsComparisonEarliest Era RepresentedWell-attestedAncient 120mmFilter Results21 entriesWeapon FamilyAllAircraft Carriers (1)Anti-Tank Weapons and Mines (1)Armored Cars and Reconnaissance Vehicles (4)Assault Rifles (1)Assault Rifles of the United States (1)Autocannons and Chain Guns (1)Ground-Attack Aircraft and Gunships (1)Infantry Fighting Vehicles and Armored Personnel Carriers (6)Remote Weapon Stations (1)Rifles and Carbines (5)Sniper, Designated Marksman and Anti-Materiel Rifles (4)Tanks (1)Weapon Type or ClassAllAircraft carrier (1)Anti-materiel rifle (2)Anti-tank rifle (1)Armored car (1)Armored car / Scout car (1)Armoured car (1)Autocannon (1)Gunship aircraft (1)Infantry fighting vehicle (5)Light tank (1)Prototype airbursting assault rifle (1)Remote weapon station (1)scout car (1)small arm (2)Tracked armoured personnel carrier (1)Introduced EraAll1934 (1)1935 (1)1936 (1)1937 (1)1939 (1)1940 (1)1941 (2)1944 (1)1956 (1)1961 (2)1966 (1)1967 (1)1971 (1)1973 (1)1982 (1)1994 (1)2006 (1)2017 (1)Service StatusAllIn Service (8)Prototype or Experimental (1)Retired (11)OperatorAllBundeswehr (1)Egyptian Armed Forces (1)Finnish Defence Forces (3)French Armed Forces (1)Imperial Japanese Navy (1)Israeli Defense Forces (1)Mexican Armed Forces (2)Royal Navy (1)United States Air Force (1)United States Armed Forces (2)Wehrmacht (6)Wars Used InAllBoko Haram Insurgency (1)Bosnian War (1)Gulf War (1)Iran-Iraq War (1)Iraq War (1)Kosovo War (1)Nigerian Civil War (1)Russo-Ukrainian War (2)Second Sino-Japanese War (1)Vietnam War (1)War in Afghanistan (2001-2021) (1)Winter War (1)World War II (7)ManufacturerAllAlkett (1)Anzio Ironworks (1)Auto Union (1)Cadillac (1)Daimler-Benz (1)Daimler-Benz AG (1)FAMO (1)Fiat Automobiles (1)General Motors (1)Heckler & Koch (1)Henschel & Sohn (1)Hispano-Suiza (1)Hägglund & Söner (2)KNDS Deutschland (1)KNDS France (1)Lockheed Martin (1)MAN SE (1)Maschinenbau Kiel (1)MIAG (1)Oerlikon Rheinmetall Air Defence (1)Rafael Advanced Defense Systems (1)Rheinmetall (1)Saurer (1)State Rifle Factory (1)Show ResultsBrowseCompareSelect all 21AC-130 Gunship20mmAMX-10P20mmAnzio 20mm rifle20mmAutoblindo Fiat-Ansaldo20mmCadillac Gage Commando Scout20mmLahti L-3920mmLeichter Panzerspähwagen20mmMarder (infantry fighting vehicle)20mmOerlikon 20 mm cannon20mmPansarbandvagn 30120mmPansarbandvagn 30220mmPanzer II20mmQueen Elizabeth-Class Aircraft Carrier20mmRT-20 (rifle)20mmSamson Remote Controlled Weapon Station20mmSaurer 4K 4FA20mmSchutzenpanzer Lang HS.3020mmSd.Kfz. 23420mmSolothurn S-18/10020mmSolothurn S-18/100020mmXM29 OICW20mmConnectionsShowing the first 400 of 1,983 connections.Sources1. War and Military Atlas Periodizationtier 1InteractiveAtlas owner ruling registerWar and Military DataBrief, SubLabel convention paragraph, weapon-system has a live Ancient subcategoryQuote, War and Military DataBrief, SubLabel convention paragraph, weapon-system has a live Ancient subcategoryAncient below 500 CE, Medieval 500 to 1499, Early Modern 1500 to 1774, Modern 1775 onward (the 1775 cutover, not the round year 1800, matches the American Revolutionary War already being tagged Modern in the live data).Comments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.