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Rifle Length > 5.56 NATO > AR-15 Upper Build Kit

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 '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
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 'Hummingbird' 16.5
Davidson Defense 'Hummingbird' 16.5" AR-15 5.56 NIT Left Handed Upper Build Kit
$594.99 $279.99

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  1. Home
  2. AR-15 & AR-10 Build Kits
  3. Upper Build Kits
  4. Shop by Caliber > AR-15 & LR-308/AR-10 Upper Build Kits
  5. 5.56 NATO > AR-15 Upper Build Kit
  6. Rifle Length > 5.56 NATO > AR-15 Upper Build Kit

Products [120]

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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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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
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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
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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
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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
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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
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Davidson Defense
Davidson Defense "Knight Orc" 16" AR-15 5.56 NATO Nitride Upper Build Kit
$534.99 $249.99 Sale
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Davidson Defense
Davidson Defense "Larimar" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$529.99 $244.99 Sale
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Davidson Defense
Davidson Defense "Websterite" 16.5" AR-15 5.56 Nitride Upper Build Kit
$519.99 $234.99 Sale
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Davidson Defense
Davidson Defense "Charoite" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$529.99 $244.99 Sale
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MMC Arms Top Shelf
MMC Arms Top Shelf "Hognose" AR-15 Featuring Aero Precision Upper Receiver 18" Faxon Firearms 5.56 NATO 4150 CMV QPQ Nitride 1-8T Barrel 15" Unique AR Handguard (Assembled or Unassembled)
$809.99 $559.99 Sale
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Davidson Defense
Davidson Defense "Huckleberry" AR-15 Upper Receiver 20" 5.56 NATO 4150 CMV QPQ Nitride 1-9T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$534.99 $264.99 Sale
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Davidson Defense 'Dandy' 16.5
Davidson Defense 'Dandy' 16.5" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$519.99 $234.99 Sale
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MMC Arms Top Shelf
MMC Arms Top Shelf "Surge" AR-15 Featuring Aero Precision Upper Receiver 16.5" Mercury Precision 5.56 NATO 4150 CMV QPQ Nitride 1-7 Barrel 12" M-Lok Davidson Defense Handguard (Assembled or Unassembled)
$569.99 $254.99 Sale
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MMC Arms Top Shelf
MMC Arms Top Shelf "Blitz" AR-15 Featuring Aero Precision Upper Receiver 16.5" Mercury Precision 5.56 NATO 4150 CMV QPQ Nitride 1-7 Barrel 12" M-Lok Davidson Defense Handguard (Assembled or Unassembled)
$534.99 $319.99 Sale
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Davidson Defense
Davidson Defense "Warminster" 16" AR-15 5.56 Upper Build Kit
$499.99 $214.99 Sale
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Davidson Defense
Davidson Defense "Centralia" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV 1-7T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$579.99 $294.99 Sale
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MMC Arms Top Shelf
MMC Arms Top Shelf "Fallen" AR-15 Featuring A Davidson Defense Upper Receiver 18" Faxon Firearms 5.56 NATO 4150 CMV QPQ Nitride 1-8T Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$609.99 $319.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Heartnote" 16.5" AR-15 Nitride Left Handed Upper Upper Build Kit
$609.99 $294.99 Sale
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Davidson Defense 'Kingston' 16.5
Davidson Defense 'Kingston' 16.5" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$514.99 $229.99 Sale
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Davidson Defense
Davidson Defense "Waverly" 16.5" AR-15 5.56 Nitride Upper Build Kit
$514.99 $229.99 Sale
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Davidson Defense
Davidson Defense "Manchester" 16.5" AR-15 5.56 NATO Nitride Upper Build Kit
$514.99 $229.99 Sale
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Davidson Defense
Davidson Defense "Springfield" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$519.99 $234.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Charleston" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$549.99 $234.99 Sale
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