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BSmall arms
At a glance
Measured figures
HK33A2
Single sourceHK33A3 stock collapsed
Single sourceConfiguration
| Specification | Heckler & Koch HK33 | Mk 13 rifle |
|---|---|---|
| Type | Assault rifle[source] | — |
| Place of origin | West Germany[source] | — |
| In service | 1968–present[source] | 2001–present[source] |
| Used by | See Users[source] | United States[source] |
| Wars | 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 |
HK33A3 stock extended /
Single sourceHK33KA3 stock collapsed
Single sourceHK33KA3 stock extended /
Single sourceHK53 stock collapsed
Single sourceHK53 stock extended /
Single sourceHK33A2: 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[source]
Length
Single source1207 mm (47.5")[source]
HK33A2
Single sourceHK53
Single sourceHK33A2: 750 rounds/min HK53: 700 rounds/min[source]
HK33A2
Single sourceHK33KA3
Single sourceHK53
Single sourceHK33A2: 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)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
War in Afghanistan Iraq War[source] |
| Manufacturer | Heckler & Koch , MKEK (licensed)[source] | Accuracy International[source] |
|---|
| Produced | 1968—2000 (H&K) 1999—present (MKEK)[source] | — |
|---|
| Variants | See Variants[source] | Mk 13 MOD 5 Mk 13 MOD 7[source] |
|---|
| Cartridge | .223 Remington 5.56×45mm NATO[source] | .300 Winchester Magnum[source] |
|---|
| Action | Roller-delayed blowback[source] | Bolt action[source] |
|---|
| Feed system | 25-, 30-, or 40-round detachable box magazine[source] | 5-round magazine (MOD 5)[source] |
|---|
| Sights | Rotary rear aperture drum, hooded foresight[source] | Nightforce Advanced Tactical Riflescope[source] |
|---|
| Designer | — | Accuracy International / Remington Arms[source] |
|---|
| Country of origin | — | United Kingdom[source] |
|---|
| Reported operators |
| — |
|---|