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  1. Home
  2. AR-15 & AR-10 Build Kits
  3. Upper Build Kits

Upper Build Kits

Upgrade your AR-15's upper with our build kits featuring high-quality components, multiple calibers, and finishes. Shop now and create the perfect upper receiver for your shooting needs. Take your rifle to the next level today!
 

Top Sellers

Polymer80 PF940C Compact 80% Blank - Black
Polymer80 PF940C Compact 80% Blank - Black
$149.99 $69.99
Recoil Technologies Micro Low-Profile Gas Block for .750 O.D Barrel Steel
Recoil Technologies Micro Low-Profile Gas Block for .750 O.D Barrel Steel
$16.99 $9.99
Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
$99.99 $71.99

New Releases

X2 Dev Group Jackal X - Combat Derived Charging Handle, AR-15, Black
X2 Dev Group Jackal X - Combat Derived Charging Handle, AR-15, Black
$94.99 $54.99
Davidson Defense 'Good Deal w/ Carry Handle' 10.5
Davidson Defense 'Good Deal w/ Carry Handle' 10.5" AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$554.99 $239.99
Davidson Defense 'Ablator w/ Carry Handle' 10.5
Davidson Defense 'Ablator w/ Carry Handle' 10.5" AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$554.99 $239.99

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  • $0 - $24.99
  • $25 - $49.99
  • $50 - $99.99
  • $100 - $149.99
  • $150 - $199.99
  • $200 - $249.99+
  • Shop by Caliber > AR-15 & LR-308/AR-10 Upper Build Kits
  • Pistol Upper Build Kits
  • Rifle Upper Build Kits

Products [315]

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Davidson Defense AR-15
Davidson Defense AR-15 "Shinnok" Assembled Pistol Upper Receiver 7.5" .223 Wylde 4150 CMV 1-7T Barrel 7" M-Lok Handguard
$424.99 $244.99 Sale
In Stock
Add To Cart
Davidson Defense
Davidson Defense "Manta Ray" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV 1-8T Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$424.99 $274.99 Sale
In Stock
Select Options
OTD
OTD "Fulvous" 20" LR-308 6.5 Creedmoor Nitride Upper Build W/: Aero Precision and Helius Tactical
$689.99 $374.99 Sale
In Stock
Select Options
Davidson Defense
Davidson Defense "Littleknot" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV 1-8T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$474.99 $284.99 Sale
In Stock
Select Options
Davidson Defense
Davidson Defense "Gulfstream" AR-15 Pistol Upper Receiver 5.5" 9MM 4150 CMV QPQ Nitride 1-10T Heavy Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$434.99 $184.99 Sale
Out of Stock
Davidson Defense
Davidson Defense "Sunfish" AR-15 Pistol Upper Receiver 8.5" 9MM 4150 CMV QPQ Nitride 1-10T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$504.99 $189.99 Sale
In Stock
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DTT
DTT "Leatherback" 16.5" AR-15 5.56 Nitride Upper Build Kit
$519.99 $234.99 Sale
Waitlist to be notified - More coming soon!
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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
Waitlist to be notified - More coming soon!
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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 "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
Select Options
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 "Lykoi" AR-15 Pistol Upper Receiver 4" 9MM 4150 CMV QPQ Nitride 1-10T KAK Industries Barrel 4" M-Lok Handguard (Assembled or Unassembled)
$459.99 $184.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Sandstorm" AR-15 Pistol Upper Receiver 7.5" .223 Wylde Phosphate 1-7 T Barrel 7" Premium M-Lok Handguard (Assembled or Unassembled)
$484.99 $264.99 Sale
In Stock
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OTD
OTD "Jet Star" 8" AR-15 9mm Nitride Pistol Upper Build W/: KAK Industry
$489.99 $174.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Bulletstorm" AR-15 Upper Receiver 16" .350 Legend 4150 CMV QPQ Nitride 1-16T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$514.99 $249.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Deus Ex" AR-15 Upper Receiver 16" .350 Legend 4150 CMV QPQ Nitride 1-16T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$514.99 $244.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Fluorite" 4" AR-15 9MM Nitride Pistol Upper Build Kit
$454.99 $204.99 Sale
In Stock
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DTT Elite Series
DTT Elite Series "Newport" 8" AR-15 9MM Pistol Upper Build W/: KAK Industry and Guntec USA
$524.99 $209.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Trove" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-7T Barrel 9" M-Lok Handguard (Assembled or Unassembled)
$519.99 $264.99 Sale
Waitlist to be notified - More coming soon!
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OTD Customs
OTD 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
Waitlist to be notified - More coming soon!
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Davidson Defense
Davidson Defense "Arenal" AR-15 Pistol Upper Receiver 5.25" 9MM 4150 CMV QPQ Nitride 1-10T Barrel 4" M-Lok Handguard (Assembled or Unassembled)
$519.99 $169.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Darkwatch" 4" AR-15 9MM Nitride Upper Build Kit
$519.99 $204.99 Sale
In Stock
Select Options
Davidson Defense
Davidson Defense "Lualua" AR-15 Upper Receiver 16" .223 Wylde 416R Stainless 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$649.99 $274.99 Sale
In Stock
Select Options
Davidson Defense
Davidson Defense "Bumblebee" AR-15 Upper Receiver 16" .223 Wylde 416R Stainless 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$634.99 $304.99 Sale
In Stock
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1 2 3 4 5 6 7 ...14 Next Page View All
When it comes to customizing your AR-15, few things are more important than the upper receiver. This critical component houses the barrel, gas system, and handguard, among other vital parts. Upgrading your AR-15's upper receiver with a build kit is a great way to enhance your rifle's performance, accuracy, and appearance.

At its core, an AR-15 upper build kit typically includes a stripped upper receiver, a barrel, and a handguard. These components are often made from high-quality materials like aluminum or steel, ensuring that they can withstand the rigors of intense use. Many kits also come with a variety of customization options, allowing you to tailor your upper receiver to your specific shooting needs.

One of the most significant benefits of AR-15 upper build kits is that they allow you to build a rifle that is entirely unique to you. Whether you're looking for a particular caliber, barrel length, or handguard design, there are countless options available to help you create the perfect upper receiver for your shooting needs.

Another advantage of AR-15 upper build kits is that they can often save you money compared to purchasing a pre-built upper receiver. By purchasing a kit and assembling the upper yourself, you can avoid paying for labor costs and markups from retailers. This can be particularly beneficial if you're on a budget or looking to get the most value for your money.

Of course, the assembly process itself is another benefit of AR-15 upper build kits. While building an AR-15 upper receiver from scratch may seem daunting at first,  we offer other combos/kits that can come with all the necessary tools and instructions to help make the process straightforward and hassle-free. This not only allows you to save money but also gives you a sense of pride and accomplishment in building your own custom upper receiver.

When shopping for AR-15 upper build kits, there are a few factors to consider. First, you'll want to ensure that the kit you choose is compatible with your lower receiver and other components. Additionally, you'll want to consider the caliber you plan to shoot, as some kits may be better suited for specific calibers or barrel lengths.

You'll also want to pay attention to the quality of the components included in the kit. Look for kits that use high-quality materials like aircraft-grade aluminum or chrome-moly steel, as these materials will ensure that your upper receiver is durable and long-lasting. Additionally, consider the reputation of the manufacturer, as well as any warranties or guarantees they offer.

In summary, AR-15 upper build kits are an excellent option for anyone looking to customize their rifle and improve its performance. By providing a range of customization options and allowing you to build your upper receiver from scratch, these kits offer a unique and satisfying shooting experience. Whether you're a seasoned pro or just starting, an AR-15 upper build kit can help take your rifle to the next level. So why wait? Browse our selection of high-quality AR-15 upper build kits today and start building your dream rifle!
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