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5.56 NATO > AR-15 Upper Build Kit

Top Sellers

Davidson Defense 'Rosco Rizzo' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'Rosco Rizzo' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$239.99 $179.99
Davidson Defense 'Sawbones' 16.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'Sawbones' 16.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$254.99 $188.99
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)
$214.99 $157.99
MMC Top Shelf
MMC Top Shelf "Ironstone" 16.5" AR-15 5.56 Nitride Upper Build Kit W/ Mercury Precision, Unique AR
$304.99
Davidson Defense 'Black Magic' 20-inch AR-15 5.56 NATO Phosphate Rifle Upper Build Kit
Davidson Defense 'Black Magic' 20-inch AR-15 5.56 NATO Phosphate Rifle Upper Build Kit
$244.99 $183.99
MMC Armory Exclusive 'Noble Slender' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit - No Handguard
MMC Armory Exclusive 'Noble Slender' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit - No Handguard
$209.99 $156.99
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
$209.99 $155.99
Davidson Defense 'Quantum of Solace w/ Rosco Bloodline Barrel' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'Quantum of Solace w/ Rosco Bloodline Barrel' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$214.99 $157.99
MMC 'Superflous' 16-inch AR-15 5.56 NATO Stainless Rifle Upper Build Kit
MMC 'Superflous' 16-inch AR-15 5.56 NATO Stainless Rifle Upper Build Kit
$244.99 $180.99
Davidson Defense 'M.A.V. 12 in 5.56' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'M.A.V. 12 in 5.56' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$249.99 $184.99
Davidson Defense 'Sawbones Featuring Rosco Barrel' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'Sawbones Featuring Rosco Barrel' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$224.99 $165.99
Davidson Defense 'Starfury' 16-inch AR-15 5.56 NATO Nitride Left-Handed Rifle Upper Build Kit
Davidson Defense 'Starfury' 16-inch AR-15 5.56 NATO Nitride Left-Handed Rifle Upper Build Kit
$264.99 $197.99
Davidson Defense 'Capture' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
Davidson Defense 'Capture' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$199.99 $147.99
Davidson Defense 'Left-Handed Streamline' 16.5-inch AR-15 5.56 NATO Nitride Left-Handed Rifle Upper Build Kit
Davidson Defense 'Left-Handed Streamline' 16.5-inch AR-15 5.56 NATO Nitride Left-Handed Rifle Upper Build Kit
$299.99 $222.99
MMC 'Lightshow II - Black V2' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
MMC 'Lightshow II - Black V2' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$289.99 $217.99
Davidson Defense 'Left Handed Mod 1' 16.5-inch AR-15 5.56 NATO Nitride Left-Handed Rifle Upper Build Kit
Davidson Defense 'Left Handed Mod 1' 16.5-inch AR-15 5.56 NATO Nitride Left-Handed Rifle Upper Build Kit
$274.99 $203.99

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  • Pistol Length > 5.56 NATO > AR-15 Upper Build Kits
  • Rifle Length > 5.56 NATO > AR-15 Upper Build Kit

Products [138]

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Davidson Defense
Davidson Defense"Skylark" AR-15 Upper Receiver 16.5" Ultra-Match 5.56 NATO QPQ Nitride 1-7T Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$469.99 $179.99 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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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 "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 "Integra" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$469.99 $259.99 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 "Micro" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$464.99 $264.99 Sale
In 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 "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
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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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MMC Top Shelf
MMC Top Shelf "Ironstone" 16.5" AR-15 5.56 Nitride Upper Build Kit W/ Mercury Precision, Unique AR
$304.99
In Stock
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Davidson Defense
Davidson Defense "Lazurite" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$504.99 $264.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Malachite" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$519.99 $264.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Titanite" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$514.99 $274.99 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)
$809.99 $559.99 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)
$534.99 $264.99 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)
$489.99 $214.99 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)
$514.99 $254.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Wiscasset" AR-15 Upper Receiver 16" 5.56 NATO 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$559.99 $274.99 Sale
In 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)
$624.99 $319.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Longan" AR-15 Upper Receiver 16" 5.56 NATO 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$564.99 $279.99 Sale
In 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)
$579.99 $294.99 Sale
In Stock
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