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Rifle Length > 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 $189.99
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)
$209.99 $159.99
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 $184.99
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 $159.99
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
$224.99 $125.99
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
$374.99 $130.49
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
$239.99 $179.99
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 $169.99
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 $224.99
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 $219.99
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 $204.99
Davidson Defense 'Pecos Bill V3 Ft. Rosco Bloodline Barrel' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'Pecos Bill V3 Ft. Rosco Bloodline Barrel' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$274.99 $204.99
MMC 'Rogue Renegade' 16
MMC 'Rogue Renegade' 16" AR-15 5.56 NATO Stainless Rifle Upper Build Kit
$279.99 $209.99
Aero Precision AR15 Complete Upper, 20
Aero Precision AR15 Complete Upper, 20" 5.56 w/ Pinned FSB, MOE Handguard - Black
$484.99 $419.99

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  4. Shop by Caliber > AR-15 & LR-308/AR-10 Upper Build Kits
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  6. Rifle Length > 5.56 NATO > AR-15 Upper Build Kit
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Products [91]

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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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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 "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
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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 "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 "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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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 "Santa Fe" 16.5" AR-15 5.56 Nitride Upper Build Kit
$399.99 $249.99 Sale
In Stock
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MMC Top Shelf 'Stonerender' 16
MMC Top Shelf 'Stonerender' 16" AR-15 5.56 NATO Upper Build W/: Aero Precision and Unique AR's
$599.99 $449.99 Sale
In Stock
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Davidson Defense 'Red Rover' 16
Davidson Defense 'Red Rover' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$404.99 $304.99 Sale
In Stock
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Davidson Defense 'Immediate Action' 16
Davidson Defense 'Immediate Action' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$404.99 $304.99 Sale
In Stock
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Davidson Defense 'Hitmarker' 16
Davidson Defense 'Hitmarker' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$374.99 $279.99 Sale
In Stock
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Davidson Defense 'Lance' 16
Davidson Defense 'Lance' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$334.99 $254.99 Sale
In Stock
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Davidson Defense 'Sleek Mod' 16
Davidson Defense 'Sleek Mod' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$359.99 $269.99 Sale
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Davidson Defense 'Ikelos' 16
Davidson Defense 'Ikelos' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$304.99 $229.99 Sale
In Stock
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Davidson Defense 'Brass Goblin' 16
Davidson Defense 'Brass Goblin' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$334.99 $254.99 Sale
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