M3 submachine gun
E872285
The M3 submachine gun, commonly called the "Grease Gun," is a compact .45 ACP American submachine gun widely used by U.S. forces during and after World War II.
All labels observed (2)
| Label | Occurrences |
|---|---|
| M3 submachine gun canonical | 2 |
| M3A1 submachine gun | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10549783 — 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: M3 submachine gun Context triple: [M14 rifle, replaced, M3 submachine gun]
-
A.
Thompson submachine gun
The Thompson submachine gun is an iconic American automatic firearm, widely used by gangsters and law enforcement during the Prohibition era and later adopted by the military in World War II.
-
B.
Lanchester submachine gun
The Lanchester submachine gun was a British World War II-era firearm, closely based on the German MP 28, used primarily by the Royal Navy and known for its robust construction and reliability.
-
C.
Sten submachine gun
The Sten submachine gun was a simple, inexpensive British 9mm World War II firearm widely used by Allied forces and resistance fighters for its ease of manufacture and concealment.
-
D.
Sterling submachine gun
The Sterling submachine gun is a British 9mm firearm introduced in the post–World War II era, known for its improved reliability, compact folding stock, and long service as a standard weapon of the British Army.
-
E.
MG3 machine gun
The MG3 machine gun is a German 7.62×51mm NATO general-purpose machine gun derived from the World War II-era MG 42 and widely used by NATO and other armed forces for decades.
- 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: M3 submachine gun Target entity description: The M3 submachine gun, commonly called the "Grease Gun," is a compact .45 ACP American submachine gun widely used by U.S. forces during and after World War II.
-
A.
Thompson submachine gun
The Thompson submachine gun is an iconic American automatic firearm, widely used by gangsters and law enforcement during the Prohibition era and later adopted by the military in World War II.
-
B.
Lanchester submachine gun
The Lanchester submachine gun was a British World War II-era firearm, closely based on the German MP 28, used primarily by the Royal Navy and known for its robust construction and reliability.
-
C.
Sten submachine gun
The Sten submachine gun was a simple, inexpensive British 9mm World War II firearm widely used by Allied forces and resistance fighters for its ease of manufacture and concealment.
-
D.
Sterling submachine gun
The Sterling submachine gun is a British 9mm firearm introduced in the post–World War II era, known for its improved reliability, compact folding stock, and long service as a standard weapon of the British Army.
-
E.
MG3 machine gun
The MG3 machine gun is a German 7.62×51mm NATO general-purpose machine gun derived from the World War II-era MG 42 and widely used by NATO and other armed forces for decades.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf | submachine gun ⓘ |
| action | blowback ⓘ |
| alsoKnownAs |
Grease Gun
ⓘ
M3 Grease Gun ⓘ |
| barrelLength | 8 inches ⓘ |
| cartridge | .45 ACP ⓘ |
| category |
Submachine guns of the United States
ⓘ
World War II infantry weapons of the United States ⓘ |
| chambering | .45 ACP ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| designed | 1942 ⓘ |
| designedBy |
George Hyde
ⓘ
Inland Division of General Motors ⓘ |
| designedFor |
U.S. military
ⓘ
linked to:
United States Armed Forces
|
| era |
World War II era
ⓘ
linked to:
World War II
|
| feature |
integral magazine loading tool in stock
ⓘ
side-mounted magazine ⓘ telescoping wire stock ⓘ |
| feedSystem | detachable box magazine ⓘ |
| firingModeControl | trigger only (no selector switch) ⓘ |
| intendedRole |
personal defense weapon for vehicle crews
ⓘ
submachine gun for support troops ⓘ |
| introduced | 1943 ⓘ |
| magazineCapacity |
20-round magazine
ⓘ
30-round magazine ⓘ |
| manufacturer |
Guide Lamp Division of General Motors
ⓘ
Inland Division of General Motors ⓘ |
| material | stamped steel ⓘ |
| nicknameOrigin | resembled an automotive grease gun ⓘ |
| operationMode | fully automatic ⓘ |
| overallLength | approximately 29.8 inches with stock extended ⓘ |
| rateOfFire | approximately 450 rounds per minute ⓘ |
| replaced | Thompson submachine gun ⓘ |
| selectFire | no ⓘ |
| serviceEntry | 1943 ⓘ |
| sightType | fixed iron sights ⓘ |
| successor |
M3A1 submachine gun
ⓘ
linked to:
M3 submachine gun
|
| usedBy |
United States Army
ⓘ
United States Army Air Forces ⓘ United States Marine Corps ⓘ armored vehicle crews ⓘ paratroopers ⓘ tank crews ⓘ |
| usedInConflict |
Cold War
ⓘ
Korean War ⓘ Vietnam War ⓘ World War II ⓘ |
| variant |
M3A1 submachine gun
ⓘ
linked to:
M3 submachine gun
|
| weightUnloaded | approximately 8 pounds ⓘ |
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: M3 submachine gun Description of subject: The M3 submachine gun, commonly called the "Grease Gun," is a compact .45 ACP American submachine gun widely used by U.S. forces during and after World War II.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: M3 submachine gun
linked to: M3 submachine gun