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!

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~~ $274.99 Sale

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Davidson Defense "Graveler" AR-15 Upper Receiver 16" 7.62x39 4150 CMV H-BAR 1-10T Barrel 15" KeyMod Handguard (Assembled or Unassembled)

~~$429.99~~ $254.99 Sale

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Davidson Defense "Legend" AR-15 Upper Receiver 16" Ultra-Match 350 Legend 4150 CMV 1-16T Barrel 15" M-Lok Handguard (Assembled or Unassembled)

~~$489.99~~ $299.99 Sale

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Omega Customs "Canis Minor" AR-15 Pistol Featuring Aero Precision Upper Receiver 10.5" 7.62x39 1-10T 4150 CMV Barrel 12" M-Lok Handguard (Assembled or Unassembled)

~~$479.99~~ $264.99 Sale

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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

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Omega Customs "Canis Minor" AR-15 Pistol Featuring Davidson Defense Upper Receiver 10.5" 7.62x39 1-10T 4150 CMV Barrel 12" M-Lok Handguard (Assembled or Unassembled)

~~$479.99~~ $264.99 Sale

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OTD "Leatherback" 16.5" AR-15 5.56 Nitride Upper Build Kit

~~$469.99~~ $204.99 Sale

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OTD Elite Series "Cobelodus" 16" AR-15 .350 Legend Upper Build Kit W/ Unique AR Freedom

~~$599.99~~ $399.99 Sale

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Davidson Defense "Reject" AR-15 Upper Receiver 16" .223 Wylde 4150 CMV 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)

~~$464.99~~ $264.99 Sale

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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

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Davidson Defense "Craze" AR-15 Upper Receiver 16" 7.62x39 4150 CMV 1-10T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)

~~$479.99~~ $274.99 Sale

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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

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Omega Customs "Jetpac" AR-15 Davidson Defense Upper Receiver 16" .223 Wylde Phosphate 1-8T Barrel 12" Premium M-Lok Handguard (Assembled or Unassembled)

~~$509.99~~ $264.99 Sale

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Omega Customs "Prelude" AR-15 Davidson Defense Upper Receiver 10.5" 7.62x39 4150 CMV 1-10T Barrel Premium 12" M-Lok Handguard (Assembled or Unassembled)

~~$494.99~~ $264.99 Sale

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Davidson Defense "Citrine" AR-15 Upper Receiver 16" .350 Legend 4150 CMV 1-16T Barrel 15" M-Lok Handguard (Assembled or Unassembled)

~~$504.99~~ $304.99 Sale

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Davidson Defense 'Nexuiz' 16" AR-15 .300 Blackout Manganese Phosphate Upper Build Kit

~~$529.99~~ $214.99 Sale

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Davidson Defense "Iolite" AR-15 Upper Receiver 16" .350 Legend 4150 CMV 1-16T Barrel 15" M-Lok Handguard (Assembled or Unassembled)

~~$504.99~~ $299.99 Sale

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OTD Elite Series "Ironstone" 16.5" AR-15 5.56 Nitride Upper Build Kit W/ Mercury Precision, Unique AR

~~$609.99~~ $344.99 Sale

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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

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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

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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

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Davidson Defense "Racer" AR-15 Upper Receiver 16" .350 Legend 4150 CMV QPQ Nitride 1-16T Barrel 13" M-Lok Handguard (Assembled or Unassembled)

~~$519.99~~ $239.99 Sale

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Davidson Defense "Battlantis" AR-15 Upper Receiver 16" .350 Legend 4150 CMV QPQ Nitride 1-16T Barrel 15" M-Lok Handguard (Assembled or Unassembled)

~~$524.99~~ $249.99 Sale

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Omega Customs "Aquanox" AR-15 Featuring Aero Precision Upper Receiver 16" .350 Legend 4150 CMV QPQ Nitride Barrel 15" KeyMod Handguard (Assembled or Unassembled)

~~$519.99~~ $274.99 Sale

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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!

Upper Build Kits

Products [343]