| gptkbp:instanceOf | gptkb:shooting 
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                                | gptkbp:action | gas-operated rotating bolt
 
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                                | gptkbp:aftermarketSupport | extensive 
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                                | gptkbp:barrelLength | varies (commonly 16 inches) 
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                                | gptkbp:caliber | gptkb:5.56×45mm_NATO gptkb:.223_Remington
 
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                                | gptkbp:controversy | debate over civilian ownership 
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                                | gptkbp:countryOfOrigin | gptkb:United_States 
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                                | gptkbp:customizability | highly customizable 
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                                | gptkbp:designedBy | gptkb:Eugene_Stoner 
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                                | gptkbp:featuredIn | gptkb:television movies
 numerous video games
 
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                                | gptkbp:feedSystem | detachable magazine 
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                                | gptkbp:fireModes | semi-automatic 
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                                | gptkbp:introducedIn | 1959 
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                                | gptkbp:legalStatus | varies by country 
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                                | gptkbp:lowerReceiverSerialized | yes (in the US) 
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                                | gptkbp:magazineCapacity | 30 rounds 
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                                | gptkbp:manufacturer | gptkb:ArmaLite 
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                                | gptkbp:marketedAs | gptkb:Colt's_Manufacturing_Company various manufacturers
 
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                                | gptkbp:material | aluminum receiver synthetic furniture
 
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                                | gptkbp:nickname | gptkb:America's_Rifle 
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                                | gptkbp:notableVariant | gptkb:M16_rifle gptkb:M4_carbine
 
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                                | gptkbp:operatingSystem | direct impingement piston (some variants)
 
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                                | gptkbp:patentExpired | 1977 
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                                | gptkbp:popularFor | one of the most popular rifles in the United States 
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                                | gptkbp:rateOfFire | semi-automatic (civilian) select-fire (military variants)
 
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                                | gptkbp:recipient | lower receiver upper receiver
 
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                                | gptkbp:touristAttraction | iron sights optics (optional)
 
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                                | gptkbp:upperReceiverSerialized | no 
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                                | gptkbp:usedBy | gptkb:law_enforcement civilians
 military (as M16/M4 variants)
 
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                                | gptkbp:usedIn | gptkb:hunting self-defense
 sport shooting
 mass shootings (controversially)
 
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                                | gptkbp:weight | approximately 6-8 lbs (unloaded) 
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                                | gptkbp:bfsParent | gptkb:Eagle_Arms gptkb:M-LOK_handguard
 gptkb:Adams_Arms
 gptkb:Anderson_Manufacturing
 gptkb:Bravo_Company_Manufacturing
 gptkb:Bravo_Company_USA
 gptkb:Palmetto_State_Armory
 gptkb:Spikes_Tactical
 gptkb:Stag_Arms
 
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                                | gptkbp:bfsLayer | 8 
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                                | https://www.w3.org/2000/01/rdf-schema#label | AR-15 rifles 
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