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Artillery1955–present
Towed 20 mm triple-barreled anti-aircraft gun
Zastava M55 is a towed 20 mm triple-barreled anti-aircraft gun originating in Yugoslavia / Serbia. It was built by Zastava Arms. Reported operators include Armenia, Azerbaijan, Democratic Republic of the Congo, Croatia, Cyprus, El Salvador, Guatemala, Honduras, Indonesia, Mozambique, Serbia, Tunisia, Ukraine, Zambia, North Macedonia.
Yugoslavia / SerbiaTowed 20 mm triple-barreled anti-aircraft gun
Yugoslavia / Serbia
1955–present
See Operators
Yom Kippur War Angolan Civil War South African Border War Rhodesian Bush War Mozambican Civil War Lebanese Civil War Salvadoran Civil War Yugoslav Wars Second Nagorno-Karabakh war Russian invasion of Ukraine
Zastava Arms
1955–1971
Zastava Arms
1971–present
See Variants section
1,100 kg (2,400 lb) loaded, 970 kg (2,140 lb) unloaded
1.47 m (4 ft 10 in) (driving condition)
1,956 mm (77.0 in) L/70
1.27 m (4 ft 2 in) (driving condition)
4.30 m (14.1 ft) (driving condition)
6 (gunners and commander)
20x110mm Hispano
20 mm
3
Gas operated
+83° to -5
360°
1,950 and 2,250 rpm cyclic, 700 rpm practical
Armour-piercing: 840 m/s (2,800 ft/s), High-explosive incendiary : 850 m/s (2,800 ft/s)
2,000 m (6,600 ft) (air), 2,500 m (8,200 ft) (ground targets)
4,000 m (13,000 ft) (vertical), 5,500 m (18,000 ft) (horizontal)
3 x 60 round top-fed drum magazines
Armenia
Azerbaijan
Democratic Republic of the Congo
Croatia
Cyprus
El Salvador
Guatemala
Honduras
Indonesia
Mozambique
Serbia
Tunisia
Ukraine
Zambia
North Macedonia
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
True scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 1.47 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 1.47 m | Wikipedia contributors | approved |
| 28 Sept 2026 | 1.47 m | Wikipedia contributors | superseded |
Zastava M55 equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Armenia
Azerbaijan
Croatia
CyprusReported count for Zastava M-55. Service scope: Cypriot National Guard; does not replace a national total. 1 distinct quantity component(s) from the same source list; shared rowspan cells counted once. Explicit source inventory scope: active; no other stock status or total inferred. Count column(s): in service: 50. Origin: Yugoslavia. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Reported count for Zastava M-55. Service scope: Cypriot National Guard; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Excludes retired/reserve/on-order rows. Count column(s): in service: 50. Origin: Yugoslavia. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Democratic Republic of the Congo
El SalvadorReported count for Zastava M55. Service scope: Salvadoran Army; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Excludes retired/reserve/on-order rows. Count column(s): number: 31. Origin: Yugoslavia. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
GuatemalaReported count for Zastava M55. Country-wide list; no individual service specified. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): quantity: 16. Origin: Yugoslavia. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
HondurasReported count for Zastava M55 A2. Country-wide list; no individual service specified. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): quantity: 24. Origin: Yugoslavia. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Indonesia
Lebanon
Mozambique
North MacedoniaLower-bound count for Zastava M55 20 mm. Service scope: Army of North Macedonia; does not replace a national total. 1 distinct quantity component(s) from the same source list; shared rowspan cells counted once. Explicit source inventory scope: active; no other stock status or total inferred. Count column(s): in service: 30+. Origin: Yugoslavia. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Serbia
TongaReported count for Zastava M55. Country-wide list; no individual service specified. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): number: 2 x Triple Barrel. Origin: Serbia/ Tonga. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
TunisiaReported count for Zastava M55. Service scope: Tunisian Army; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): number: 100. Origin: Yugoslavia. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Ukraine
ZambiaReported count for Zastava M55. Service scope: Zambian Army; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): quantity: 50. Origin: Yugoslavia. The listed variants/roles are the scope, not an immediately deployable count. Dates are the count-cell citations' stated source period (2016), not the article revision. 2016 cited source edition. Edition or publication years do not claim an exact inventory census day.
Armenia, Azerbaijan, Democratic Republic of the Congo, Croatia, Cyprus, El Salvador, Guatemala, Honduras, Indonesia, Mozambique, Serbia, Tunisia, Ukraine, Zambia, North Macedonia
Equipment reference ↗Lower-bound count for Zastava M55 20 mm. Service scope: Army of North Macedonia; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): in service: 30+. Origin: Yugoslavia. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.