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5.56 NATO AR-15 Upper Builds

Top Sellers

Davidson Defense 'XV556' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'XV556' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$379.99 $284.99
Davidson Defense 'Hot Hand Mid-Length' MMC Exclusive 16.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit (Handguard Ready)
Davidson Defense 'Hot Hand Mid-Length' MMC Exclusive 16.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit (Handguard Ready)
$179.99 $134.99
Davidson Defense Freedom Saber 16-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Freedom Saber 16-inch AR-15 5.56 NATO Rifle Full Build Kit
$364.99 $274.99
Davidson Defense Cursebreaker w/Gauntlet Arms Brace 7.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Cursebreaker w/Gauntlet Arms Brace 7.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$339.99 $254.99
Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
$269.99 $199.99
Davidson Defense Wallbreaker 16-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Wallbreaker 16-inch AR-15 5.56 NATO Rifle Full Build Kit
$359.99 $269.99
Davidson Defense 'Vigilance Wing 5.56 w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Vigilance Wing 5.56 w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$349.99 $264.99
Davidson Defense 'G.I. Mod 1' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Upper Build Kit
Davidson Defense 'G.I. Mod 1' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Upper Build Kit
$184.99 $139.99
Davidson Defense Spartan Zero 7.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
Davidson Defense Spartan Zero 7.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
$169.99 $124.99
Davidson Defense Side Hustle 10.5-inch AR-15 5.56 NATO Pistol Complete Upper
Davidson Defense Side Hustle 10.5-inch AR-15 5.56 NATO Pistol Complete Upper
$304.99 $229.99
Davidson Defense Waking Dream 20-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Waking Dream 20-inch AR-15 5.56 NATO Rifle Full Build Kit
$369.99 $279.99
Davidson Defense Wallbreaker 16-inch AR-15 5.56 NATO Rifle Complete Upper Build
Davidson Defense Wallbreaker 16-inch AR-15 5.56 NATO Rifle Complete Upper Build
$284.99 $214.99
Davidson Defense Freedom Saber 16-inch AR-15 5.56 NATO Rifle Complete Upper Build
Davidson Defense Freedom Saber 16-inch AR-15 5.56 NATO Rifle Complete Upper Build
$289.99 $219.99
Davidson Defense Nightflare w/Gauntlet Arms Brace 7.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Nightflare w/Gauntlet Arms Brace 7.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$344.99 $259.99
MMC 'Anchor' 16
MMC 'Anchor' 16" AR-15 5.56 NATO Stainless Rifle Complete Upper Build Kit
$344.99 $259.99
Preassembled Davidson Defense 'M.A.V. 12 in 5.56' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Preassembled Davidson Defense 'M.A.V. 12 in 5.56' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$249.99 $189.99

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  • 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 [343]

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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)
$194.99 $144.99 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)
$294.99 $224.99 Sale
Out of Stock
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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)
$234.99 $179.99 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)
$494.99 $374.99 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)
$239.99 $184.99 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)
$209.99 $159.99 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)
$204.99 $154.99 Sale
Out of 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)
$179.99 $134.99 Sale
Out of 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)
$254.99 $189.99 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)
$444.99 $334.99 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)
$249.99 $189.99 Sale
Out of Stock
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MMC Top Shelf
MMC Top Shelf "Ironstone" 16.5" AR-15 5.56 Nitride Upper Build Kit W/ Mercury Precision, Unique AR
$474.99 $409.99 Sale
In Stock
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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)
$844.99 $634.99 Sale
Out of Stock
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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)
$289.99 $219.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Erebos" AR-15 Upper Receiver 14.5" 5.56 NATO 4150 CMV 1-9T Barrel Carbine Length Drop-In Handguard (Assembled or Unassembled)
$204.99 $154.99 Sale
Out of Stock
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MMC Customs
MMC Customs "Avagaum" AR-15 Pistol Upper Receiver 8.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$189.99 $144.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Babaco" AR-15 Pistol Upper Receiver 14.5" 5.56 NATO 4150 CMV 1-7T Barrel Carbine Length Drop-In Handguard (Assembled or Unassembled)
$404.99 $304.99 Sale
Out of Stock
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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)
$319.99 $239.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Mr. Glass" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$449.99 $339.99 Sale
Out of Stock
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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)
$424.99 $319.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Santa Fe" 16.5" AR-15 5.56 Nitride Upper Build Kit
$399.99 $249.99 Sale
In Stock
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Davidson Defense 'Vali' 7.5
Davidson Defense 'Vali' 7.5" AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$219.99 $164.99 Sale
In Stock
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Davidson Defense 'Vali' 7.5
Davidson Defense 'Vali' 7.5" AR-15 5.56 NATO Nitride Pistol Complete Upper Build Kit
$314.99 $234.99 Sale
In Stock
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MMC 'Anchor' 16
MMC 'Anchor' 16" AR-15 5.56 NATO Stainless Rifle Complete Upper Build Kit
$344.99 $259.99 Sale
In Stock
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1 2 3 4 5 6 7 ...15 Next Page View All
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