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
Radical Firearms 16" 5.56 NATO Complete Upper Assembly
Radical Firearms
$474.95Radical Firearms 16" 5.56 NATO Complete Upper Assembly The Radical Firearms 5.56mm upper is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the...$474.95 -
Out of stock
Radical Firearms 8.5" 300 Black Out Complete Upper Assembly
Radical Firearms
MSRP: $474.95$449.95Radical Firearms 8.5" 300 Black Out Complete Upper Assembly The Radical Firearms 8.5" HBAR profile 300BLK is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that...MSRP: $474.95$449.95 -
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 -
16" Billet Slick Side 5.56 Parkerized Mid-Length 1:7 M-LOK AR-15 Complete Upper
Black Rifle Depot
MSRP: $429.95 - $454.95$389.95 - $419.9516" Billet Slick Side 5.56 Parkerized Mid-Length 1:7 M-LOK Complete Upper This is an affordable AR-15 upper assembly without cutting corners. This means using a nitrided steel gas block from an American Manufacturer as opposed to aluminum, quality...MSRP: $429.95 - $454.95$389.95 - $419.95 -
Out of stock
16" Lightweight Slick Slide Billet .223 Wylde Mid-Length 1:8 M-LOK Complete
Black Rifle Depot
MSRP: $509.95$499.9516" Lightweight Slick Slide Billet .223 Wylde Mid-Length 1:8 M-LOK Complete The 16" Lightweight Slick Slide Billet .223 Wylde Mid-Length 1:8 M-LOK Complete Upper is engineered for maximum weight savings without compromising quality or affordability...MSRP: $509.95$499.95 -
Out of stock
2A Armament Palouse-Lite 16.5" 5.56 NATO Complete Upper
2A Armament
$799.002A Armament Palouse-Lite 16.5" 5.56 NATO Complete Upper The 2A Armament Palouse-Lite 16.5" 5.56 NATO Complete Upper comes with a 16.5" 5.56 NATO barrel with 1:8 twist. The receiver is the 2A Palouse-Lite Forged Upper Receiver and matches...$799.00 -
Out of stock
8.3" 9mm M-LOK Complete Upper with LRBHO
Black Rifle Depot
MSRP: $398.95$349.958.3" 9mm M-LOK Complete Upper with LRBHO High-Performance Upper for Pistol or SBR Builds The BRD 8.3" 9mm M-LOK Complete Upper with Last Round Bolt Hold-Open (LRBHO) functionality is the perfect choice for your next pistol or NFA-compliant SBR build...MSRP: $398.95$349.95 -
Aero Precision AR-15 Complete Upper, 16" 5.56 Mid-Length Barrel w/ Pinned FSB, M4 Handguard (Includes BCG & CH)
Aero Precision
MSRP: $640.00$546.95Aero Precision AR-15 Complete Upper, 16" 5.56 Mid-Length Barrel w/ Pinned FSB, M4 Handguard (Includes BCG & CH) This AR15 Complete Upper features a 16" 5.56 Mid-Length Barrel w/ Pinned FSB, Mid Handguard, BCG and Charging...MSRP: $640.00$546.95 -
Out of stock
Aero Precision M4E1 Threaded PRO 12.5" CHF 5.56 M-LOK Midlength Complete Upper
Aero Precision
MSRP: $1,095.00$950.95Aero Precision M4E1 Threaded PRO 12.5" CHF 5.56 M-LOK Midlength Complete Upper The PRO Upper Receiver Group built around our PRO 5.56 Cold Hammer Forged Barrel that is paired with our PRO 5.56 BCG. Included ATLAS R-ONE Handguard, BREACH Charging Handle,...MSRP: $1,095.00$950.95 -
Out of stock
Aero Precision M4E1 Threaded PRO 16.3" CHF 5.56 M-LOK Midlength Complete Upper
Aero Precision
MSRP: $1,145.00$993.95Aero Precision M4E1 Threaded PRO 16.3" CHF 5.56 M-LOK Midlength Complete Upper The PRO Upper Receiver Group built around our PRO 5.56 Cold Hammer Forged Barrel that is paired with our PRO 5.56 BCG. Included ATLAS R-ONE Handguard, BREACH Charging Handle,...MSRP: $1,145.00$993.95 -
Aero Precision M5 Complete Upper, 24" 6.5 CM SS Fluted BRL ATLAS S-ONE 15" M-LOK HG - FDE Cerakote
Aero Precision
MSRP: $975.00$835.95Aero Precision M5 Complete Upper, 24" 6.5 CM SS Fluted BRL ATLAS S-ONE 15" M-LOK HG - FDE Cerakote This 6.5 Creedmoor upper is an easy upgrade to your existing or new build M5/308 AR. Utilizing all compatible parts with the exception of the barrel, you...MSRP: $975.00$835.95 -
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 DDM4 PDW .300 BLK 7" Pistol 1:7 Complete Upper Receiver
Daniel Defense
MSRP: $1,645.00$1,599.00Daniel Defense DDM4 PDW .300 BLK 7" Pistol 1:7 Complete Upper ReceiverMSRP: $1,645.00$1,599.00 -
Out of stock
Daniel Defense DDM4V7 AR 15 Complete Upper
Daniel Defense
MSRP: $1,263.00$1,214.00Daniel Defense DDM4V7 AR 15 Complete Upper The Daniel Defense M4 V7 Upper Receiver Group is built around a Cold Hammer Forged 16" Government profile barrel and equipped with a DD improved Flash Suppressor to reduce flash signature. It features a...MSRP: $1,263.00$1,214.00 -
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 -
Out of stock
Dirty Bird 16" Side-Charging 5.56 NATO Govt M-LOK Complete Upper
Dirty Bird Industries
MSRP: $699.95$629.95Dirty Bird 16" Side-Charging 5.56 NATO Govt M-LOK Complete Upper This Dirty Bird Industries 9mm Complete Upper features a Side-Charging upper receiver and pairs it with one of the best-selling 15" Dirty Bird SMRS M-LOK Handguards. NEW: The Dirty Bird...MSRP: $699.95$629.95 -
Out of stock
Dirty Bird 16″ SPR 6mm ARC Stainless Midlength M-LOK Complete Upper
Dirty Bird Industries
MSRP: $554.99$529.95Dirty Bird 16″ SPR 6mm ARC Stainless Midlength M-LOK Complete Upper 6mm ARC is quickly becoming one of the most versatile rounds for the AR-15. With better ballistic coefficients and velocity than 5.56 and .223 and a flatter shooting experience...MSRP: $554.99$529.95 -
Dirty Bird 20" Lightweight .22-250 Rifle Stainless Steel Slick-Side M-LOK Complete Upper
Dirty Bird Industries
MSRP: $799.95$719.95Dirty Bird 20" Lightweight .22-250 Rifle Stainless Steel Slick-Side M-LOK Complete Upper The Dirty Bird 20" .22-250 Complete Upper is a great building block for your next tack driver build! .22-250 is a high-velocity round that is not only...MSRP: $799.95$719.95 -
Dirty Bird Industries 7.5" 5.56 DRP Pistol M-LOK V2 Upper Assembly
Dirty Bird Industries
MSRP: $409.95$369.95Dirty Bird Industries 7.5" 5.56 DRP Pistol M-LOK V2 Upper Assembly Premium 7.5" Pistol Upper Assembly Built for Durability, Accuracy, and Versatility The Dirty Bird Industries 7.5" 5.56 DRP Pistol M-LOK V2 Upper Assembly is engineered to deliver...MSRP: $409.95$369.95 -
Dirty Bird Slick-Side 16" 9mm 1:10 M-LOK Complete Upper
Dirty Bird Industries
MSRP: $499.95$449.95Dirty Bird Slick-Side 16" 9mm 1:10 M-LOK Complete Upper This Dirty Bird Industries 9mm Complete Upper features a PCC (Pistol Caliber Carbine) upper receiver with a Last Round Bolt Hold Open (LRBHO) mechanism and pairs it with one of the best-selling 15"...MSRP: $499.95$449.95 -
Out of stock
Faxon ARAK-21 12.5" 5.56 Complete Upper
Faxon Firearms
$999.00Faxon ARAK-21 12.5" 5.56 Complete Upper The ARAK-21® is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard AR-15 platform. The total extent of the interface is simply the take...$999.00 -
Out of stock
Faxon ARAK-21 16" 5.56 Ambidextrous Piston Complete Upper
Faxon Firearms
$1,199.00Faxon ARAK-21 16" 5.56 Ambidextrous Piston Complete Upper The ARAK-21® is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard AR-15 platform. The total extent of the interface is...$1,199.00 -
Out of stock
Faxon Firearms ION Ultralight 16" 5.56 Barrel Complete Upper Receiver
Faxon Firearms
MSRP: $1,099.00$1,011.95Faxon Firearms ION Ultralight 16" 5.56 Barrel Complete Upper Receiver FX5500-U features our 14.5" Pencil Barrel with Integral Slim 3-Port Muzzle Brake which meets the NFA 16" minimum barrel length requirement, 13” Streamline Carbon Fiber Handguard,...MSRP: $1,099.00$1,011.95 -
Out of stock
Foxtrot Mike 16" Rear Charging .45 AR-15 Complete Upper, 15" Handguard, CA Compliant Brake, Includes BCG
Foxtrot Mike
MSRP: $499.99$479.95Foxtrot Mike 16" Rear Charging .45 AR-15 Complete Upper, 15" Handguard, CA Compliant Brake, Includes BCG The Foxtrot Mike Products Complete .45 AR upper is the package you have been waiting for to finish your Glock mag AR-45 build. This .45 upper...MSRP: $499.99$479.95 -
Out of stock
Foxtrot Mike Products 16" Forward Charging .45 AR-15 Complete Upper
Foxtrot Mike
$489.00Foxtrot Mike Products 16" Forward Charging .45 AR-15 Complete Upper The Foxtrot Mike Products FM-9 Complete .45 AR-15 Upper Receiver is built from the ground up to provide outstanding reliability and accuracy with a host of top tier features. The...$489.00 -
Out of stock
Foxtrot Mike Products 16″ Forward Charging 45 ACP AR-15 Complete Upper
Foxtrot Mike
$439.99Foxtrot Mike Products 16″ Forward Charging 45 ACP AR-15 Complete Upper Precision, Reliability, and Performance in a Forward-Charging .45 ACP Upper. The Foxtrot Mike Products 16" Forward Charging .45 ACP AR-15 Complete Upper is a high-performance,...$439.99 -
Foxtrot Mike Products 16" Forward Charging 9mm AR-15 Complete Upper
Foxtrot Mike
MSRP: $489.00$469.00Foxtrot Mike Products 16" Forward Charging 9mm AR-15 Complete Upper The Foxtrot Mike Products FM-9 Complete 9mm AR-15 Upper Receiver is built from the ground up to provide outstanding reliability and accuracy with a host of top tier features. The...MSRP: $489.00$469.00 -
Out of stock
Foxtrot Mike Products 16" Rear Charging .45 AR-15 Complete Upper
Foxtrot Mike
MSRP: $489.00$469.00Foxtrot Mike Products 16" Rear Charging .45 AR-15 Complete Upper The Foxtrot Mike Products Complete .45 AR upper is the package you have been waiting for to finish your Glock mag AR-45 build. This .45 upper receiver comes with all the features...MSRP: $489.00$469.00 -
Out of stock
Foxtrot Mike Products 16" Rear Charging 9mm AR-15 Complete Upper
Foxtrot Mike
MSRP: $489.00$469.95Foxtrot Mike Products 16" Rear Charging 9mm AR-15 Complete Upper The Foxtrot Mike Products Complete 9mm AR upper is the package you have been waiting for to finish your Glock mag AR-9 build. This 9mm upper receiver comes with all the features you want in...MSRP: $489.00$469.95 -
Out of stock
Foxtrot Mike Products 5" Rear Charging .45 AR-15 Complete Upper
Foxtrot Mike
MSRP: $349.00$329.00Foxtrot Mike Products 5" Rear Charging .45 AR-15 Complete Upper The Foxtrot Mike Products Complete .45 AR-15 upper is the package you have been waiting for to finish your Glock mag AR-45 build. This .45 upper receiver comes with all the...MSRP: $349.00$329.00 -
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 -
Out of stock
Geissele Automatics Duty AR-15 Complete Upper Receiver Mid-length - OD Green - 16"
Geissele Automatics
$1,410.00Geissele Automatics Duty AR-15 Complete Upper Receiver Mid-length - OD Green - 16" The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 16” complete upper chambered...$1,410.00 -
Geissele Automatics Super Duty MOD1 AR-15 Complete Upper Receiver Mid-length - DDC - 16"
Geissele Automatics
$1,410.00Geissele Automatics Super Duty MOD1 AR-15 Complete Upper Receiver Mid-length - DDC - 16" The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 16” complete upper...$1,410.00 -
Out of stock
Premium 16" .223 Wylde Gov Mid M-LOK Complete Upper
Black Rifle Depot
MSRP: $469.95$399.95Premium 16" .223 Wylde Gov Mid M-LOK Complete Upper We wanted to build an affordable upper assembly without cutting corners. This means using a nitrided steel gas block from an American Manufacturer as opposed to aluminum, quality American Made...MSRP: $469.95$399.95 -
Out of stock
Sharps Bros. SBUR04 16" Complete AR 15 Upper
Sharps Bros
MSRP: $922.00$899.95Sharps Bros. SBUR04 16"Complete AR 15 Upper The Sharps Bros. SBUR04 16"Complete AR 15 Upper is manufactured using top tier parts. These AR uppers come with a 16" 5.56 NATO barrel with mid-length gas system. Each Sharps Bros. complete AR Upper...MSRP: $922.00$899.95 -
Out of stock
Spike's Tactical 16" Mid Length CHF Complete Upper
Spike's Tactical
MSRP: $700.00$689.95Spike's Tactical 16" Mid Length CHF Complete Upper Spikes complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers...MSRP: $700.00$689.95 -
Out of stock
Troy Industries 16" 5.56 NATO A4 Complete Upper
Troy Industries
$770.00Troy Industries 16" 5.56 NATO A4 Complete Upper Troy Industries AR-15 A4 Upper Receivers are lightweight and ultra-low profile. Developed specifically for today's war fighter and Law Enforcement led by Special Operations field requirements. The...$770.00
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.