M4 carbine
E182727
The M4 carbine is a lightweight, gas-operated, magazine-fed 5.56×45mm NATO assault rifle widely used by modern military forces, particularly the U.S. armed forces.
All labels observed (3)
| Label | Occurrences |
|---|---|
| M4 carbine canonical | 8 |
| M4A1 carbine | 1 |
| M4_carbine | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1591508 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: M4 carbine Context triple: [Afghan National Army, usedEquipment, M4 carbine]
-
A.
M16 rifle
The M16 rifle is a lightweight, 5.56×45mm NATO, gas-operated assault rifle that has been a standard-issue infantry weapon for the U.S. military and many allied forces since the Vietnam War era.
-
B.
HK416F assault rifle
The HK416F assault rifle is a modern, gas‑piston–operated 5.56×45mm NATO firearm developed by Heckler & Koch and adopted as the standard service rifle of the French armed forces.
-
C.
M60 SBS
The M60 SBS is a Select Bus Service route in New York City that provides limited-stop service between Manhattan and Queens, including direct access to LaGuardia Airport.
-
D.
Beryl assault rifle
The Beryl assault rifle is a Polish-designed 5.56×45mm NATO service rifle widely used as the primary infantry weapon of Poland’s armed forces.
-
E.
FAMAS assault rifle
The FAMAS assault rifle is a distinctive French bullpup 5.56×45mm NATO service rifle known for its high rate of fire and long use as the standard infantry weapon of France.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: M4 carbine Target entity description: The M4 carbine is a lightweight, gas-operated, magazine-fed 5.56×45mm NATO assault rifle widely used by modern military forces, particularly the U.S. armed forces.
-
A.
M16 rifle
The M16 rifle is a lightweight, 5.56×45mm NATO, gas-operated assault rifle that has been a standard-issue infantry weapon for the U.S. military and many allied forces since the Vietnam War era.
-
B.
HK416F assault rifle
The HK416F assault rifle is a modern, gas‑piston–operated 5.56×45mm NATO firearm developed by Heckler & Koch and adopted as the standard service rifle of the French armed forces.
-
C.
M60 SBS
The M60 SBS is a Select Bus Service route in New York City that provides limited-stop service between Manhattan and Queens, including direct access to LaGuardia Airport.
-
D.
Beryl assault rifle
The Beryl assault rifle is a Polish-designed 5.56×45mm NATO service rifle widely used as the primary infantry weapon of Poland’s armed forces.
-
E.
FAMAS assault rifle
The FAMAS assault rifle is a distinctive French bullpup 5.56×45mm NATO service rifle known for its high rate of fire and long use as the standard infantry weapon of France.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
assault rifle
ⓘ
carbine ⓘ firearm ⓘ select-fire weapon ⓘ |
| action | gas-operated ⓘ |
| barrelLength | 14.5 inches ⓘ |
| basedOn | M16 rifle ⓘ |
| caliber | 5.56 mm ⓘ |
| cartridge | 5.56×45mm NATO ⓘ |
| conflictUsedIn |
Global War on Terrorism
ⓘ
Iraq War ⓘ War in Afghanistan (2001–2021) ⓘ
surface form:
War in Afghanistan
|
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designer | Colt's Manufacturing Company ⓘ |
| feedSystem | detachable box magazine ⓘ |
| fireModes |
fully automatic (M4A1)
ⓘ
semi-automatic ⓘ three-round burst ⓘ |
| gasSystem | direct impingement ⓘ |
| inService | 1994 ⓘ |
| intendedRole |
close-quarters battle weapon
ⓘ
infantry carbine ⓘ |
| introduced | 1990s ⓘ |
| manufacturer |
Colt Defense
ⓘ
FN Herstal ⓘ
surface form:
FN Herstal (under license)
|
| material |
aluminum alloy receiver
ⓘ
polymer furniture ⓘ |
| mountingSystem |
Picatinny rail (on upgraded models)
ⓘ
surface form:
Picatinny rail
|
| operationMode | selective fire ⓘ |
| overallLength |
approximately 29.75 inches (stock retracted)
ⓘ
approximately 33 inches (stock extended) ⓘ |
| partOf |
AR-15 pattern rifles
ⓘ
surface form:
AR-15 family
|
| primaryUser |
United States Armed Forces
ⓘ
surface form:
U.S. armed forces
|
| rateOfFire | 700–950 rounds per minute ⓘ |
| shoulderFired | true ⓘ |
| sights |
iron sights
ⓘ
optical sights (via rail) ⓘ |
| standardMagazineCapacity | 30 rounds ⓘ |
| stockType | telescoping stock ⓘ |
| usedBy |
NATO member states
ⓘ
United States Air Force ⓘ United States Army ⓘ United States Marine Corps ⓘ United States Navy ⓘ U.S. Special Operations Command ⓘ
surface form:
United States Special Operations Forces
various law enforcement agencies ⓘ |
| variant |
M4 carbine
self-linksurface differs
ⓘ
surface form:
M4A1 carbine
|
| variantOf |
M16 rifle
ⓘ
surface form:
M16A2 rifle
|
| weightEmpty | about 6.4 lb ⓘ |
| weightLoaded | about 7.5 lb with 30-round magazine ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: M4 carbine Description of subject: The M4 carbine is a lightweight, gas-operated, magazine-fed 5.56×45mm NATO assault rifle widely used by modern military forces, particularly the U.S. armed forces.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
2nd Battalion, 4th Marines
this entity surface form:
M4A1 carbine
subject surface form:
Golf Company, 2nd Battalion, 4th Marines
this entity surface form:
M4_carbine