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At a glance
M45 quad mountlarger figure on 1 of 2
ZU-23-2larger figure on 1 of 2
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Configuration
| Specification | M45 quad mount | ZU-23-2 |
|---|---|---|
| Type | Anti-aircraft gun , heavy machine gun[source] | Towed 23 mm anti-aircraft twin autocannon[source] |
| Place of origin | United States[source] | Soviet Union[source] |
| Wars | World War II First Indochina War Korean War Vietnam War Portuguese Colonial War Indo-Pakistani War of 1965 Lebanese Civil War 1978 South Lebanon conflict Nicaraguan Revolution 1982 Lebanon War Sino-Vietnamese War Third Indochina War Salvadoran Civil War[source] | Angolan Civil War South African Border War Ethiopian Civil War Lebanese Civil War Soviet–Afghan War Western Sahara War Somali Civil War Iran–Iraq War United States invasion of Grenada Second Sudanese Civil War Siachen conflict Operation Praying Mantis Gulf War Georgian Civil War First Chechen War Second Chechen War War in Afghanistan (2001–2021) South Lebanon conflict (1985–2000) 2006 Lebanon War Russo-Georgian War First Libyan Civil War Sudanese conflict in South Kordofan and Blue Nile Syrian Civil War Northern Mali conflict Russo-Ukrainian War War in Donbas Second Libyan Civil War Yemeni Civil War (2014–present) Tigray War Russo-Ukrainian war War in Amhara Sudanese civil war (2023–present) 2025 India–Pakistan conflict Iran–Israel war 2026 Afghanistan–Pakistan war |
Width
Single source2.88 m (9 ft 5 in)[source]
Effective; effective AA
Single sourceEffective; maximum AA
Single sourceMaximum
Single sourceMaximum; horizontal
Single source4,900 ft (1.5 km) (effective AA) 15,000 ft (4.5 km) (maximum AA)[source]
1.1 mi (1.8 km) (horizontal) 1.6 mi (2.5 km) (maximum)[source]
Effective; effective range
Single source2.5 km (2 miles) effective range[source]
Muzzle velocity
Single source2,900 ft/s (890 m/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Shell | .50 BMG (12.7×99mm NATO)[source] | 23x152B[source] |
|---|
| Shell weight | 21 oz (.6 kg)[source] | — |
|---|
| Action | Short recoil-operated[source] | Gas operated[source] |
|---|
| Elevation | -5° to +90°[source] | −10° to +90°[source] |
|---|
| Traverse | 360°[source] | 360°[source] |
|---|
| Feed system | Belt-fed (M2 or M9 links)[source] | 2x 50 round belt[source] |
|---|
| Manufacturer | Maxon Manufacturing Co.[source] | — |
|---|
| In service | — | 1960–present[source] |
|---|
| Used by | — | See Operators section[source] |
|---|
| Designer | — | KBP Instrument Design Bureau[source] |
|---|
| Designed | — | Late 1950s[source] |
|---|
| Produced | — | 1960–present [1][source] |
|---|
| Variants | — | See Variants and upgrades[source] |
|---|
| Barrels | — |
|---|
| Reported operators |
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