PTR-91
E713972
The PTR-91 is an American-made, semi-automatic battle rifle patterned after the German HK G3, known for its roller-delayed blowback system and robust construction.
All labels observed (5)
| Label | Occurrences |
|---|---|
| PTR-91 canonical | 1 |
| PTR-91 A3R | 1 |
| PTR-91 A3S | 1 |
| PTR-91 GI | 1 |
| PTR-91 K (carbine variant) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8131458 — 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: PTR-91 Context triple: [HK G3 series, notableVariant, PTR-91]
-
A.
Sturmgewehr 90
The Sturmgewehr 90 is a Swiss-made 5.56×45mm NATO assault rifle (SIG SG 550) that serves as the standard service rifle of Switzerland.
-
B.
C96 pistol
The C96 pistol is a distinctive early semi-automatic handgun, recognizable by its broomhandle-style grip and integral box magazine, that became one of Mauser’s most iconic firearms.
-
C.
CZ 75
The CZ 75 is a widely used Czech-designed semi-automatic pistol renowned for its reliability, ergonomics, and influence on modern handgun design.
-
D.
CZ P-07
The CZ P-07 is a modern Czech-made polymer-framed semi-automatic pistol widely used by military and law enforcement forces.
-
E.
G36 assault rifle
The G36 assault rifle is a modern 5.56×45mm NATO modular infantry weapon developed by the German manufacturer Heckler & Koch and widely used by military forces around the world.
- 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: PTR-91 Target entity description: The PTR-91 is an American-made, semi-automatic battle rifle patterned after the German HK G3, known for its roller-delayed blowback system and robust construction.
-
A.
Sturmgewehr 90
The Sturmgewehr 90 is a Swiss-made 5.56×45mm NATO assault rifle (SIG SG 550) that serves as the standard service rifle of Switzerland.
-
B.
C96 pistol
The C96 pistol is a distinctive early semi-automatic handgun, recognizable by its broomhandle-style grip and integral box magazine, that became one of Mauser’s most iconic firearms.
-
C.
CZ 75
The CZ 75 is a widely used Czech-designed semi-automatic pistol renowned for its reliability, ergonomics, and influence on modern handgun design.
-
D.
CZ P-07
The CZ P-07 is a modern Czech-made polymer-framed semi-automatic pistol widely used by military and law enforcement forces.
-
E.
G36 assault rifle
The G36 assault rifle is a modern 5.56×45mm NATO modular infantry weapon developed by the German manufacturer Heckler & Koch and widely used by military forces around the world.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
firearm
ⓘ
semi-automatic battle rifle ⓘ |
| action | roller-delayed blowback ⓘ |
| basedOn |
Heckler & Koch G3
ⓘ
linked to:
Heckler & Koch G3 rifle
|
| caliber | .308 Winchester ⓘ |
| cartridge | 7.62×51mm NATO ⓘ |
| chamberSupport | designed for 7.62×51mm NATO pressure levels ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| ejectionPattern | strong side ejection with fluted brass ⓘ |
| feedSystem | 20-round detachable box magazine ⓘ |
| fireMode | semi-automatic ⓘ |
| handguardOptions |
slim polymer handguard
ⓘ
wide handguard with heat shield ⓘ |
| hasFeature |
diopter drum rear sight
ⓘ
fluted chamber ⓘ hooded front sight ⓘ paddle magazine release on some variants ⓘ roller-locked bolt head ⓘ |
| hasSafety | selector lever safety ⓘ |
| hasVariant |
PTR-91 A3R
ⓘ
linked to:
PTR-91
PTR-91 A3S ⓘ
linked to:
PTR-91
PTR-91 GI ⓘ
linked to:
PTR-91
PTR-91 K (carbine variant) ⓘ
linked to:
PTR-91
|
| intendedRole | battle rifle ⓘ |
| intendedUse |
civilian sporting rifle
ⓘ
law enforcement rifle ⓘ |
| legalClassificationUS | semi-automatic rifle ⓘ |
| magazineCompatibility | HK G3 pattern magazines ⓘ |
| manufacturer | PTR Industries ⓘ |
| marketedAs | US-made G3-style rifle ⓘ |
| notableCharacteristic |
distinctive recoil impulse
ⓘ
reliability in adverse conditions ⓘ robust construction ⓘ |
| operatingPrinciple | delayed blowback using rollers ⓘ |
| primaryMaterial | stamped steel receiver ⓘ |
| railOptions |
models with claw-mount compatible receiver
ⓘ
models with welded optics rail ⓘ |
| receiverType | welded sheet metal receiver ⓘ |
| sightRadius |
similar to HK G3
ⓘ
linked to:
Heckler & Koch G3 rifle
|
| stockOptions |
collapsible stock
ⓘ
fixed stock ⓘ |
| typicalBarrelLength |
16 inches
ⓘ
18 inches ⓘ |
| typicalTriggerSystem | hammer-fired ⓘ |
| typicalUseCase |
hunting
ⓘ
rifle competition ⓘ target shooting ⓘ |
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: PTR-91 Description of subject: The PTR-91 is an American-made, semi-automatic battle rifle patterned after the German HK G3, known for its roller-delayed blowback system and robust construction.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: PTR-91
linked to: PTR-91
linked to: PTR-91
linked to: PTR-91