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5.56 NATO AR-15 Upper Builds

Top Sellers

Davidson Defense 'Reasonable' 16
Davidson Defense 'Reasonable' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$479.99 $194.99
Davidson Defense 'Reasonable' 16
Davidson Defense 'Reasonable' 16" AR-15 5.56 NATO Manganese Phosphate Rifle Full Build Kit
$609.99 $324.99
Davidson Defense 'Tarul' 13.7
Davidson Defense 'Tarul' 13.7" AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$519.99 $234.99
MMC
MMC "Capitol" 20" AR-15 5.56 NATO Nitride Complete Upper Build W/ Ballistic Advantage
$684.99 $399.99
Davidson Defense 'The Vampire V2' 16
Davidson Defense 'The Vampire V2' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$499.99 $214.99
Davidson Defense 'Troodon' 16
Davidson Defense 'Troodon' 16" AR-15 .223 Stainless Rifle Upper Build Kit
$569.99 $284.99
Davidson Defense 'Lightshow II - Purple' 16
Davidson Defense 'Lightshow II - Purple' 16" AR-15 5.56 NATO Nitride Rifle Full Build Kit
$634.99 $349.99
Davidson Defense 'Prudence' 11.5
Davidson Defense 'Prudence' 11.5" AR-15 5.56 NATO Nitride Pistol Complete Upper Build
$529.99 $244.99
Davidson Defense 'The Vampire V2' 16
Davidson Defense 'The Vampire V2' 16" AR-15 5.56 NATO Nitride Rifle Full Build Kit
$624.99 $339.99
Davidson Defense
Davidson Defense "Scoter" AR-15 Upper Receiver 16" 5.56 NATO 416R Stainless 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$559.99 $244.99
Davidson Defense 'Athos' 11.5
Davidson Defense 'Athos' 11.5" AR-15 5.56 NATO Nitride Pistol Complete Upper Build
$544.99 $259.99
Davidson Defense 'Gribble' 10.5
Davidson Defense 'Gribble' 10.5" AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$524.99 $239.99
Davidson Defense 'Hummingbird' 16.5
Davidson Defense 'Hummingbird' 16.5" AR-15 5.56 NIT Left Handed Upper Build Kit
$594.99 $279.99
Davidson Defense 'Leclerc' 16
Davidson Defense 'Leclerc' 16" AR-15 5.56 NATO Nitride Rifle Full Build Kit
$604.99 $319.99
Davidson Defense 'Osorio' 16
Davidson Defense 'Osorio' 16" AR-15 5.56 NATO Nitride Rifle Full Build Kit
$589.99 $304.99

Manufacturer

  1. Home
  2. AR-15 & AR-10 Build Kits
  3. Upper Builds by Caliber
  4. 5.56 NATO AR-15 Upper Builds
  • AR-15 80% Upper Build Kits > 5.56 NATO
  • AR-15 Full Build Kits (Everything Minus Lower) > 5.56 NATO
  • AR-15 Complete Upper Build Kits > 5.56 NATO
  • AR-15 Upper Build Kits > 5.56 NATO

Products [483]

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Davidson Defense
Davidson Defense"Dakota" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$589.99 $369.99 Sale
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Davidson Defense
Davidson Defense "Compact" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$474.99 $189.99 Sale
In Stock
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Davidson Defense AR-15
Davidson Defense AR-15"Axe" Assembled Pistol Upper Receiver 7.5" 5.56 NATO Stainless 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$424.99 $229.99 Sale
In Stock
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MMC Arms
MMC Arms"Bronco" AR-15 Featuring Aero Precision Upper Receiver 16" 5.56 NATO 1-8T QPQ Nitride Colt Competition Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$604.99 $319.99 Sale
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Davidson Defense 'VHS' 7.5
Davidson Defense 'VHS' 7.5" AR-15 5.56 NATO Phosphate Pistol Upper Build Kit
$474.99 $189.99 Sale
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Davidson Defense
Davidson Defense"Lil Titan" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$484.99 $199.99 Sale
In Stock
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MMC Arms
MMC Arms "Rat-Tat-Tat" AR-15 Pistol Featuring Davidson Defense Upper Receiver 7.5" 5.56 NATO 416R Stainless 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$529.99 $344.99 Sale
Out of Stock
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MMC Top Shelf
MMC Top Shelf "Rebellion" 16" AR-15 5.56 Nitride Upper Build Kit W/ Ballistic Advantage
$554.99 $269.99 Sale
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Davidson Defense
Davidson Defense "Scaup" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$454.99 $239.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Surd" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$454.99 $219.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Sprite" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$469.99 $239.99 Sale
In Stock
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MMC Arms Top Shelf
MMC Arms Top Shelf "Lynx" AR-15 Featuring Davidson Defense Upper Receiver 18" Faxon Firearms 5.56 NATO 4150 CMV QPQ Nitride 1-8T Barrel 17.5" KeyMod ODIN Works Handguard (Assembled or Unassembled)
$624.99 $379.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Fuego" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 9" M-Lok Handguard (Assembled or Unassembled)
$474.99 $229.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Fregata" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-7T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$534.99 $264.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Giga Wing" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-8T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$479.99 $224.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Tributo" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$479.99 $239.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Regiment" AR-15 Pistol Upper Receiver 11.5" 5.56 NATO 4150 CMV 1-7T Barrel Carbine Length Drop-In Handguard (Assembled or Unassembled)
$454.99 $209.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Fire Hawk" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$464.99 $234.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Blade Eagle" AR-15 Upper Receiver 24" 5.56 NATO 416R Stainless 1-9T Target Crowned Bull Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$484.99 $234.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Joust" Side Charging AR-15 Upper Receiver 20" 5.56 NATO 416R Stainless 1-9T Target Crowned Bull Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$524.99 $359.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Themis" AR-15 Upper Receiver 24" 5.56 NATO 416R Stainless 1-9T Target Crowned Bull Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$519.99 $229.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Rhea" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-7T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$524.99 $384.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Carina" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-7T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$444.99 $274.99 Sale
In Stock
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MMC Top Shelf
MMC Top Shelf "Carnivore" 16" AR-15 5.56 NATO Upper Build Kit W/: Faxon Firearms and Strike Industries
$639.99 $354.99 Sale
In Stock
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1 2 3 4 5 6 7 ...21 Next Page View All
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