HK21
E713974
The HK21 is a German belt-fed general-purpose machine gun developed by Heckler & Koch, known for its modular design and use of the roller-delayed blowback system.
Observed surface forms (2)
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | general-purpose machine gun ⓘ |
| action | roller-delayed blowback ⓘ |
| basedOn | Heckler & Koch G3 rifle NERFINISHED ⓘ |
| canBeConfiguredAs |
light machine gun
ⓘ
medium machine gun ⓘ |
| canUse |
box magazines (in some configurations)
ⓘ
disintegrating metal link belts ⓘ non-disintegrating belts ⓘ |
| cartridge | 7.62×51mm NATO ⓘ |
| category |
7.62×51mm NATO machine guns
ⓘ
Heckler & Koch machine guns NERFINISHED ⓘ general-purpose machine guns ⓘ |
| chamberingOptions |
5.56×45mm NATO (HK23 variants)
ⓘ
7.62×51mm NATO NERFINISHED ⓘ |
| countryOfOrigin |
Germany
ⓘ
West Germany NERFINISHED ⓘ |
| designedBy | Heckler & Koch engineers NERFINISHED ⓘ |
| designedFor | general-purpose machine gun role ⓘ |
| feedSystem | belt-fed ⓘ |
| firingMode |
fully automatic
ⓘ
selective fire ⓘ |
| hasFeature |
modular feed mechanism
ⓘ
quick-change barrel ⓘ roller-locked bolt head ⓘ |
| hasVariant |
HK21A1
ⓘ
HK21E NERFINISHED ⓘ HK23 ⓘ HK23E ⓘ |
| inService | 1960s ⓘ |
| intendedUsers |
military forces
ⓘ
paramilitary forces ⓘ |
| introduced | 1960s ⓘ |
| isModular | true ⓘ |
| manufacturer | Heckler & Koch NERFINISHED ⓘ |
| mountsOn |
bipod
ⓘ
tripod ⓘ |
| typicalRateOfFire | about 800 rounds per minute ⓘ |
| usedBy |
Brazil
NERFINISHED
ⓘ
Chile NERFINISHED ⓘ Greece NERFINISHED ⓘ Mexico NERFINISHED ⓘ Portugal NERFINISHED ⓘ Turkey NERFINISHED ⓘ |
| usedIn | various NATO-aligned countries ⓘ |
| usesOperatingSystemDerivedFrom | G3 rifle NERFINISHED ⓘ |
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.