AR-15 Complete Uppers
A high-quality AR-15 Complete Upper is crucial when assembling or upgrading your rifle, directly influencing accuracy, reliability, and overall performance. Our collection features premium AR-15 complete uppers designed for effortless integration, precision accuracy, and consistent function. Each complete upper receiver includes all essential components to quickly finalize your AR-15 build—such as barrels, handguards, gas systems, bolt carrier groups (BCGs), charging handles, and muzzle devices.
Whether embarking on your first AR-15 build or enhancing your current setup, our complete uppers simplify the process and deliver exceptional results. Every component is manufactured to exact specifications from superior-quality materials, ensuring durability and dependable performance even under demanding conditions. These complete uppers are fully compatible with mil-spec lower receivers and facilitate seamless, hassle-free assembly.
Streamline your next AR-15 project—choose from industry-leading brands renowned for quality, precision, and reliability.
Key Features:
- Complete uppers fully assembled with essential components
- Precision-machined for exact fit and optimal performance
- Durable, corrosion-resistant construction
- Mil-spec compatibility ensures seamless integration
- Easy-to-install design ideal for new builds or upgrades
- Available in various calibers and configurations to match your needs
Technical Specifications:
- Compatibility: Mil-spec AR-15 Lower Receivers
- Barrel Material: Chrome Moly Vanadium Steel or Stainless Steel
- Barrel Length Options: 10.5", 14.5", 16", 18", 20"
- Gas System: Carbine, Mid-length, Rifle-length (varies by configuration)
- Finish: Corrosion-resistant coatings (Nitride, Phosphate, Stainless Steel)
- Components Included: Barrel, Upper Receiver, Handguard, Bolt Carrier Group (BCG), Charging Handle, Gas Block & Tube, Muzzle Device
From first-time AR-15 enthusiasts to experienced sharpshooters, our AR-15 Complete Uppers deliver simplicity, dependability, and precision you can trust. Build your rifle right first with a premium upper from our trusted selection.
Frequently Asked Questions (FAQs):
Q: What components are included in an AR-15 complete upper?
A: A complete AR-15 upper typically includes the upper receiver, barrel, handguard, gas block, gas tube, bolt carrier group (BCG), charging handle, and muzzle device.
Q: Are AR-15 complete uppers compatible with all lower receivers?
A: Our AR-15 complete uppers are fully compatible with standard mil-spec AR-15 lower receivers.
Q: Do I need specialized tools to install an AR-15 complete upper?
A: No special tools are required. Installation typically involves just the takedown and pivot pins, allowing for quick and easy assembly.
Q: How long does it take to install a complete AR-15 upper?
A: Installation is quick and straightforward, often taking just a few minutes, even for beginners.
Q: Can I upgrade or customize components of my complete upper later?
A: Absolutely. Many AR-15 enthusiasts begin with a complete upper and later upgrade individual components like barrels, handguards, BCGs, or muzzle devices based on their specific preferences and shooting needs.
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Out of stock
Aero Precision M4E1 Threaded No FA Complete Upper 10.5" 5.56 Carbine 9.2" M-LOK ATLAS S-ONE - Anodized Black
Aero Precision
MSRP: $499.00$427.95Aero Precision M4E1 Threaded No FA Complete Upper 10.5" 5.56 Carbine 9.2" M-LOK ATLAS S-ONE - Anodized Black Sleek, Lightweight, and Ready for Precision Performance The Aero Precision M4E1 Threaded No FA Complete Upper is engineered for AR-15 enthusiasts...MSRP: $499.00$427.95 -
Out of stock
Aero Precision M4E1-T Complete Upper, 11.5" 5.56 Barrel, 10.3" ATLAS R-ONE MLOK HG - ODG Anodized
Aero Precision
MSRP: $610.00$522.95Aero Precision M4E1-T Complete Upper, 11.5" 5.56 Barrel, 10.3" ATLAS R-ONE MLOK HG - ODG Anodized The Aero Precision M4E1-T 5.56 NATO is a complete upper receiver designed for AR-15 platform rifles. This upper prioritizes functionality and customization...MSRP: $610.00$522.95 -
Out of stock
Colt LE6920 Enhanced Complete Upper with Centurion Rail - 5.56 - 16"
Colt Manufacturing
$1,229.95Colt LE6920 Enhanced Complete Upper with Centurion Rail - 5.56 - 16" The Colt LE6920 Enhanced Complete Upper with Centurion Rail is a great option to upgrade your current AR-15 or for your next build. This upper receiver offers a free-floated barrel and...$1,229.95 -
Daniel Defense 14.5" 5.56 M4A1 Carbine 1:7 AR-15 Complete Upper - FDE
Daniel Defense
MSRP: $1,559.00$1,450.95Daniel Defense 14.5" 5.56 M4A1 Carbine 1:7 AR-15 Complete Upper - FDE The Daniel Defense 14.5" M4A1 Complete Upper is the same complete upper receiver assembly used on their M4A1 rifle. Using top quality components from their entirely in-house produced...MSRP: $1,559.00$1,450.95 -
Out of stock
Geissele Automatics USASOC URG-I Near Clone AR-15 Pistol Upper Receiver Assembly
Geissele Automatics
$1,450.00Geissele Automatics USASOC URG-I Near Clone AR-15 Pistol Upper Receiver Assembly For more than 50 years the famed silhouette of the M16/M4 has only had one major and several minor changes. Barrel lengths and buttstocks have changed, but more or less the...$1,450.00 -
Out of stock
14.5" 5.56 NATO M4A1 SOCOM Carbine Complete Upper w/ FSB
Black Rifle Depot
MSRP: $799.95$669.9514.5" 5.56 NATO M4A1 SOCOM Carbine Complete Upper w/ FSB M4A1 Block 1 SOCOM Complete Upper – Military-Grade Performance and Precision The M4A1 Block 1 SOCOM Complete Upper is built to deliver unmatched precision and reliability for shooters who...MSRP: $799.95$669.95 -
Out of stock
16" 5.56 Black Nitride 1:9 Carbine M-LOK Government Upper Assembly
Black Rifle Depot
MSRP: $299.99$249.9516" 5.56 Black Nitride 1:9 Carbine M-LOK Government Upper Assembly Built to outperform—reliability meets precision. The 16″ 5.56 Black Nitride 1:9 Carbine M-LOK Government Upper Assembly is a no-compromise solution for shooters who demand...MSRP: $299.99$249.95 -
16" 7.62x39 Medium Carbine M-LOK Upper Assembly
Black Rifle Depot
MSRP: $339.99$299.9516" 7.62x39 Medium Carbine M-LOK Upper Assembly AK power, AR precision—built the BRD way. The 16" 7.62x39 Medium Carbine M-LOK Upper Assembly is a high-performance build solution that brings proven BRD quality to the hard-hitting 7.62x39 cartridge...MSRP: $339.99$299.95 -
16" 7.62x39 Phosphate Carbine M-LOK Heavy Upper Assembly
Black Rifle Depot
MSRP: $339.99$299.9516" 7.62x39 Phosphate Carbine M-LOK Heavy Upper Assembly Heavy-duty performance for serious 7.62x39 builds. The 16" 7.62x39 Phosphate Carbine M-LOK Heavy Upper Assembly is engineered for shooters who demand robust construction, consistent accuracy, and...MSRP: $339.99$299.95 -
Out of stock
16" Carbine 400 Legend Medium M-LOK Upper Assembly
Black Rifle Depot
MSRP: $349.99$299.9516" 400 Legend Medium Carbine M-LOK Upper Assembly The perfect balance of power, performance, and recoil. The 16" 400 Legend M-LOK Upper Assembly is engineered for hunters and shooters who demand straight-wall performance with modern AR modularity...MSRP: $349.99$299.95 -
Out of stock
18" Carbine 400 Legend Medium M-LOK Upper Assembly
Black Rifle Depot
MSRP: $399.99$349.9518" 400 Legend Medium Carbine M-LOK Upper Assembly Hunt-ready performance with less recoil, more punch. The 18" 400 Legend M-LOK Upper Assembly is built for hunters who need straight-wall compliance without sacrificing power or precision. Featuring a...MSRP: $399.99$349.95 -
Out of stock
Aero Precision 5.56 Carbine Upper Assembly - Pinned FSB - MOE SL Handguard - 16"
Aero Precision
MSRP: $455.00$389.95Aero Precision 5.56 Carbine Upper Assembly - Pinned FSB - MOE SL Handguard - 16" Embark on your next AR-15 project with Aero Precision's 5.56 Carbine Upper Assembly. This robust upper receiver comes with a 16" barrel, optimized for the 5.56 NATO caliber,...MSRP: $455.00$389.95 -
Out of stock
Aero Precision AR-15 16" 5.56 Complete Upper w/ Pinned FSB, MOE Carbine - FDE
Aero Precision
MSRP: $455.00$389.95Aero Precision AR-15 16" 5.56 Complete Upper w/ Pinned FSB, MOE Carbine - FDE The Aero Precision AR-15 16" 5.56 Complete Upper in FDE is a robust and versatile choice for AR-15 enthusiasts. This upper assembly includes a 16" 5.56 carbine barrel with a...MSRP: $455.00$389.95 -
Out of stock
Aero Precision AR-15 5.56 Carbine 10.5" Complete Upper w/ Pinned FSB MOE SL Handguard - Black
Aero Precision
MSRP: $435.00$389.99Aero Precision AR-15 5.56 Carbine 10.5" Complete Upper w/ Pinned FSB MOE SL Handguard - Black Introducing the Aero Precision AR-15 5.56 Carbine 10.5" Complete Upper, designed for superior performance and durability. Despite the description of a 16"...MSRP: $435.00$389.99 -
Out of stock
Aero Precision M4E1 Complete Upper 14.5" 5.56 M4 Carbine Barrel EM-12 Gen 2 Handguard - Black
Aero Precision
MSRP: $630.00$545.95Aero Precision M4E1 Complete Upper 14.5" 5.56 M4 Carbine Barrel EM-12 Gen 2 Handguard - Black M4E1 Complete Upper, 14.5" 5.56 M4 Carbine Barrel, EM-12 Gen 2 Handguard - Anodized Black Specifications Shipping to FFL Dealer Not Required Made In...MSRP: $630.00$545.95 -
Out of stock
Aero Precision M4E1 Enhanced No FA Complete Upper, 10.5" 5.56 Carbine, 9" Enhanced M-LOK - Anodized Black
Aero Precision
MSRP: $505.00$454.99Aero Precision M4E1 Enhanced No FA Complete Upper, 10.5" 5.56 Carbine, 9" Enhanced M-LOK - Anodized Black This complete upper receiver features the same tried-and-true construction and aesthetics as our M4E1 Enhanced Upper Receivers, without provisions...MSRP: $505.00$454.99 -
Out of stock
Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver w/ 9" M-LOK ATLAS S-ONE Handguard
Aero Precision
MSRP: $505.00$432.95Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver w/ 9" M-LOK ATLAS S-ONE Handguard This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the...MSRP: $505.00$432.95 -
Out of stock
Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 9" M-LOK ATLAS R-ONE Handguard - Cerakote FDE
Aero Precision
MSRP: $540.00$499.95Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 9" M-LOK ATLAS R-ONE Handguard - Cerakote FDE This complete upper includes Aero Precision;s new ATLAS R-ONE Handguard! The R-ONE line of handguards are designed with size and...MSRP: $540.00$499.95 -
Out of stock
Aero Precision M4E1 Threaded 11.5" 5.56 Carbine Upper Assembly - 9" M-LOK ATLAS R-ONE
Aero Precision
MSRP: $505.00$432.95Aero Precision M4E1 Threaded 11.5" 5.56 Carbine Upper Assembly - 9" M-LOK ATLAS R-ONE Aero Precision is an undeniable powerhouse in the AR-15 world, and that legacy continues with the new M4E1-T ATLAS R-One Complete Upper Receivers. Lightweight but...MSRP: $505.00$432.95 -
Out of stock
Aero Precision M4E1 Threaded 20" .350 Legend Carbine Length Complete Upper w/ 16.6" ATLAS R-ONE Handguard - Anodized Black
Aero Precision
MSRP: $750.00$641.95Aero Precision M4E1 Threaded 20" .350 Legend Carbine Length Complete Upper w/ 16.6" ATLAS R-ONE Handguard - Anodized Black This complete upper includes Aero Precision's new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in...MSRP: $750.00$641.95 -
Out of stock
Aero Precision M4E1 Threaded 20" .350 Legend Carbine Length Complete Upper w/ 16.6" ATLAS R-ONE Handguard - FDE Cerakote
Aero Precision
MSRP: $790.00$674.95Aero Precision M4E1 Threaded 20" .350 Legend Carbine Length Complete Upper w/ 16.6" ATLAS R-ONE Handguard - FDE Cerakote The Aero Precision M4E1-T 20in Complete Upper was developed to be the ideal item for any person needing a top quality selection...MSRP: $790.00$674.95 -
Out of stock
Aero Precision M4E1 Threaded Complete Upper 12.5" 5.56 BRL 12" M-LOK AR15 ATLAS S-ONE HG - Anodized Black
Aero Precision
MSRP: $423.99$399.95Aero Precision M4E1 Threaded Complete Upper 12.5" 5.56 BRL 12" M-LOK AR15 ATLAS S-ONE HG - Anodized Black This complete upper includes our ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the...MSRP: $423.99$399.95 -
Aero Precision M4E1 Threaded Complete Upper, 12.5" 5.56 Carbine Length Barrel w/ 10.3" ATLAS S-ONE M-LOK HG - Anodized Black
Aero Precision
MSRP: $615.00$535.95Aero Precision M4E1 Threaded Complete Upper, 12.5" 5.56 Carbine Length Barrel w/ 10.3" ATLAS S-ONE M-LOK HG - Anodized Black This complete upper includes our ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind,...MSRP: $615.00$535.95 -
Out of stock
Aero Precision M4E1-T 16" 5.56 Carbine Complete Upper w/ 15? M-LOK ATLAS S-ONE Handguard
Aero Precision
MSRP: $645.00$550.95Aero Precision M4E1-T 16" 5.56 Carbine Complete Upper w/ 15? M-LOK ATLAS S-ONE Handguard The Aero Precision M4E1 Threaded AR-15 Barreled Upper Receiver is perfect for shooters who are looking for a little more out of their build. The unique receiver...MSRP: $645.00$550.95 -
Out of stock
Battle Arms Workhorse 10.5" 223 Wylde Upper Assembly (No BCG No CH)
Battle Arms Development
MSRP: $529.99$499.99Battle Arms Workhorse 10.5" 223 Wylde Upper Assembly (No BCG No CH) Specifications: Barrel Length: 10.5in Gas System: Carbine Barrel Profile: A2 Barrel Steel: 4150 Chrome-Moly Vanadium Barrel Finish: Nitride Chrome Lining: None Muzzle Thread:...MSRP: $529.99$499.99 -
Daniel Defense DD4 RIIIS AR-15 5.56 NATO Carbine 1:7 11.5" Complete Upper Receiver - Black
Daniel Defense
MSRP: $1,412.00$1,359.95Daniel Defense DD4 RIIIS AR-15 5.56 NATO Carbine 1:7 11.5" Complete Upper Receiver - Black The Daniel Defense DD4 RIII Upper Receiver Group is a high-performance, precision-built AR-15 upper receiver that is perfect for your next SBR build. The upper...MSRP: $1,412.00$1,359.95 -
Daniel Defense DD4 RISIII-S AR-15 5.56 NATO Carbine 1:7 11.5" Complete Upper Receiver - FDE
Daniel Defense
MSRP: $1,412.00$1,359.95Daniel Defense DD4 RISIII-S AR-15 5.56 NATO Carbine 1:7 11.5" Complete Upper Receiver - FDE The Daniel Defense DD4 RISIII-S upper receiver is built for reliability and performance. Its 11.5-inch cold hammer forged barrel ensures accuracy and durability,...MSRP: $1,412.00$1,359.95 -
Daniel Defense MK18 Black 5.56 NATO 10.3" Short Barrel Upper Receiver Group
Daniel Defense
$1,412.00Daniel Defense MK18 Black 5.56 NATO 10.3" Short Barrel Upper Receiver Group The MK18 AR15 style Upper Receiver Group is unmatched in size, weight, and performance, and features the picatinny quad rail Daniel Defense provides to USSOCOM. The RIS II...$1,412.00 -
Dirty Bird 10.5" Government Carbine 5.56 M-LOK Upper Assembly
Dirty Bird Industries
MSRP: $444.95 - $464.95$400.95 - $418.95Dirty Bird 10.5" Government Carbine 5.56 M-LOK Upper Assembly This Dirty Bird Industries Complete Upper features a Black Nitride 10.5" Government Profile barrel chambered in 5.56 with a 1:7 twist. Built on a top-tier Forged Upper Receiver and finished...MSRP: $444.95 - $464.95$400.95 - $418.95 -
Out of stock
Geissele Automatics Duty AR-15 Complete Upper Receiver Carbine - Black - 10.3"
Geissele Automatics
$1,260.00Geissele Automatics Duty AR-15 Complete Upper Receiver Carbine - Black - 10.3" The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 10.3” complete upper chambered in...$1,260.00 -
Geissele Automatics Duty AR-15 Complete Upper Receiver Carbine - DDC - 10.3"
Geissele Automatics
$1,410.00Geissele Automatics Duty AR-15 Complete Upper Receiver Carbine - DDC - 10.3" The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 10.3” complete upper chambered in 5...$1,410.00
What Is an AR-15 Complete Upper?
An AR-15 Complete Upper includes all the upper receiver components pre-assembled, saving you time and effort. These components typically include:
- Upper receiver
- Barrel
- Gas system
- Handguard
- Bolt Carrier Group (BCG)
- Charging handle
Purchasing a complete AR-15 upper is an excellent way to ensure compatibility and quality without the hassle of assembling individual parts. Many shooters prefer this route for convenience and reliability.
Why Choose AR-15 Complete Uppers?
Choosing an AR-15 complete upper has several benefits:
- Ease of Use: Complete uppers eliminate the guesswork of assembling parts, making them ideal for beginners and experienced users.
- Performance Assurance: Pre-assembled uppers are often tested for quality, ensuring optimal performance right out of the box.
- Customization Potential: Pairing a complete upper with your choice of lower allows for a personalized firearm tailored to your shooting style.
Types of AR-15 Complete Uppers for Sale
Our collection features a variety of AR-15 complete uppers, ensuring something for every shooter. Here are some popular options:
- Aero Precision Complete Uppers: Renowned for its reliability and durability, Aero offers premium uppers ideal for tactical and recreational shooting.
- AR-15 Complete Uppers 5.56/.223: Designed for the most common calibers, these uppers are perfect for various applications, from target shooting to home defense.
- Complete AR-15 Upper with Bolt Carrier Group: These come fully equipped with a high-quality BCG, making them a complete plug-and-play solution.
- AR-15 Complete Pistol Upper: Options are usually 7.5" and 10.5", but there are many different lengths
under 16".
Each type caters to different preferences and budgets, ensuring you find the best AR-15 completed uppers for your needs.
Factors to Consider When Choosing an AR-15 Complete Upper
Selecting the right complete upper for your AR-15 involves understanding key factors:
- Caliber Compatibility: Ensure the upper matches your intended caliber, such as 5.56/.223, .300 Blackout, or 6.5 Grendel.
- Barrel Length: Choose a barrel length suited to your application, from 10.5 inches for CQB setups to 20 inches for long-range precision.
- Brand Reputation: Opt for trusted manufacturers for quality assurance.
- Material and Finish: Consider durable materials like 7075-T6 aluminum and corrosion-resistant finishes like nitride or phosphate.
- Purpose: Choose the correct configuration to define your shooting goals for hunting, competition, or home defense.
FAQs: How Do I Know Which Complete Uppers Are for AR-15?
- What Makes an Upper Compatible with My AR-15?
- Ensure the upper matches your lower receiver’s specifications (e.g., Mil-Spec vs. proprietary designs).
- Can I Use a Complete Upper with Any Lower?
- Yes, provided they follow the exact specifications, such as caliber and buffer system compatibility.
- How Do I Choose the Right Barrel Length?
- Consider your intended use—shorter barrels for maneuverability and longer for accuracy.
- Are Blemished Uppers Reliable?
- Yes, blemished uppers typically have minor cosmetic flaws that do not affect functionality.
- Do Complete Uppers Come with a Warranty?
- Most reputable brands provide warranties, ensuring peace of mind with your purchase.
- What Calibers Are Available for AR-15 Complete Uppers?
- Common calibers include 5.56/.223, .300 Blackout, 6.5 Grendel, and .224 Valkyrie.
- Should I Choose a Complete Upper with or Without a BCG?
- If you need a turnkey solution, opt for an upper with a BCG. Otherwise, you can source a separate BCG for customization.
- What Handguard Options Are Available?
- Handguards are available in free-floating and drop-in styles, in materials ranging from aluminum to polymer. Free-floating handguards are preferred for accuracy.
Find the Best AR-15 Complete Uppers
Discovering the right AR-15 complete upper for your firearm is crucial to achieving optimal performance. Our diverse selection provides options that cater to various shooting styles and preferences. Whether you’re looking for a lightweight setup for tactical scenarios or a durable option for long-range precision, we have you covered. Consider factors such as caliber, barrel length, and intended use to make a choice that fits your needs effectively and enhances your shooting experience.