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Small arms1968–present
Assault rifle
Heckler & Koch HK33 is a assault rifle originating in West Germany. It was built by Heckler & Koch , MKEK (licensed). Reported operators include Brazil, Canada, Chile, East Timor, Ecuador, El Salvador, Germany, East Germany, West Germany, Ghana, Greece, Guatemala, Indonesia, Iran, Ireland, Luxembourg, Malaysia, Myanmar, Mexico, Netherlands, Papua New Guinea, Peru, Philippines, Portugal, Saudi Arabia, Senegal, South Africa, Spain, Sweden, Tanzania, Thailand, Turkey, United Kingdom, United States.
Technical data
Assault rifle
West Germany
1968–present
See Users
Vietnam War Araguaia Guerrilla War Salvadoran Civil War Lebanese Civil War Kurdish–Turkish conflict Internal conflict in Myanmar Cenepa War South Thailand insurgency Insurgency in Northeast India Militias-Comando Vermelho conflict 2025 Cambodia-Thailand border conflict
Heckler & Koch , MKEK (licensed)
1968—2000 (H&K) 1999—present (MKEK)
See Variants
HK33A2: 3.65 kg (8.05 lb) HK33A3: 4.0 kg (8.8 lb) HK33KA3: 3.9 kg (8.6 lb) HK53: 3.05 kg (6.7 lb)
HK33A2: 920 mm (36.2 in) HK33A3: 940 mm (37.0 in) stock extended / 735 mm (28.9 in) stock collapsed HK33KA3: 865 mm (34.1 in) stock extended / 675 mm (26.6 in) stock collapsed HK53: 755 mm (29.7 in) stock extended / 563 mm (22.2 in) stock collapsed
HK33A2: 390 mm (15.4 in) HK33KA3: 332 mm (13.1 in) HK53: 211 mm (8.3 in)
.223 Remington 5.56×45mm NATO
5.56mm
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| 28 Sept 2026 | 0.92 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 0.92 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 0.92 m | Wikipedia contributors | approved |
Roller-delayed blowback
HK33A2: 750 rounds/min HK53: 700 rounds/min
HK33A2: 950 m/s (3,117 ft/s) HK33KA3: 880 m/s (2,887.1 ft/s) HK53: 750 m/s (2,460.6 ft/s)
200–400 m (219–437 yd) sight adjustments 600 metres (656 yd) with Fero Z24-G telescopic sight
25-, 30-, or 40-round detachable box magazine
Rotary rear aperture drum, hooded foresight
Brazil
Canada
Chile
East Timor
Ecuador
El Salvador
Germany
East Germany
West Germany
Ghana
Greece
Guatemala
Indonesia
Iran
Ireland
Luxembourg
Malaysia
Myanmar
Mexico
Netherlands
Papua New Guinea
Peru
Philippines
Portugal
Saudi Arabia
Senegal
South Africa
Spain
Sweden
Tanzania
Thailand
Turkey
United Kingdom
United States
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
Heckler & Koch HK33 equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Brazil
Canada
Chile
East Timor
EcuadorNumber column of the Wikipedia list table under "Small arms". The list's own wording applies; it is a compiled secondary source, not an official census.
El Salvador
Germany
Ghana
Greece
Guatemala
Indonesia
Iran
Ireland
Luxembourg
Malaysia
Mexico
Myanmar
Netherlands
Northern Cyprus
Papua New Guinea
Peru
Philippines
Portugal
Saudi Arabia
Senegal
South Africa
Spain
Sweden
Tanzania
Thailand
Türkiye
United Kingdom
United StatesBrazil, Canada, Chile, East Timor, Ecuador, El Salvador, Germany, East Germany, West Germany, Ghana, Greece, Guatemala, Indonesia, Iran, Ireland, Luxembourg, Malaysia, Myanmar, Mexico, Netherlands, Papua New Guinea, Peru, Philippines, Portugal, Saudi Arabia, Senegal, South Africa, Spain, Sweden, Tanzania, Thailand, Turkey, United Kingdom, United States
Equipment reference ↗