Mk IX simplified for mass production. Mk X - later production version, with forged barrel. Mk X-A - Mk X with dimension tolerances reduced. Mk X-B - main late-war vehicle version, fitted with the Littlejohn adaptor. Carriage variants: Mk I - Carriage designed by Vickers. Mk II - Carriage designed by the Royal Arsenal. Self-propelled mounts Tanks Light Tank Mk VII, Tetrarch Light Tank Mk VIII, Harry Hopkins Cruiser Tank Mk I Cruiser Tank Mk II Cruiser Tank Mk III Cruiser Tank Mk V, Covenanter Cruiser Tank Mk VI, Crusader - MkI and Mk II Infantry Tank Mk II, Matilda Infantry Tank Mk III, Valentine - Marks I to VII Infantry Tank Mk IV, Churchill - Mk I and Mk II Ram I (Canada) AC1 Sentinel (Australia) Armoured cars AEC Armoured Car - Mk I Coventry Armoured Car Daimler Armoured Car Marmon-Herrington Armoured Car (South Africa) - Mk IV, and Mk VI prototype Rhino Heavy Armoured Car (Australia, prototype only) Other vehicles 2 Pounder Anti-tank Gun Carrier (Australia, used for training) Loyd Carrier (experimental) Surviving examples There is an Irish Army QF 2 pdr in the museum in Collins Barracks in Dublin City. Another QF 2 pdr is on display at the Canadian Military Heritage Museum in Brantford Ontario Canada. Two guns, one of them on an improvised carriage, are on display in the IDF History Museum (Batey HaOsef) in Tel Aviv, Israel. An Australian-made QF 2 pdr is on display at the Australian War Memorial. See also QF 2 pounder naval gun "pom-pom" AA gun, of the same bore but with a pre-World War I heritage. British standard ordnance weights and measurements 37 mm gun M3, contemporary US equivalent 45 mm anti-tank gun M1937 (53-K) 45 mm anti-tank gun M1932 (19-K) 45 mm anti-tank gun M1942 (M-42), contemporary Soviet equivalents Type 94 37 mm anti-tank gun Type 1 37 mm anti-tank gun 25 mm Hotchkiss anti-tank gun Bofors 37 mm anti-tank gun Notes References Notes Bibliography Further reading External links 2-pdr at WWII Online Field artillery 40 mm artillery World War II artillery of the United Kingdom World War II tank guns Tank guns of the United Kingdom World War II anti-tank guns Vickers Military equipment introduced in the 1930s