AR-15 Complete Uppers
Introduction to AR-15 Complete Uppers
If you're looking to construct a no-nonsense AR-15 that you know will work when it counts, purchasing either a complete rifle or an Ar-15 complete uppers from Black Rifle Depot is often the way to go. Buying direct from Black Rifle Depot ensures that all assembly, troubleshooting, and quality control are handled before the firearm reaches you—all covered by a manufacturer’s warranty and built to industry standards, ensuring reliability.
What is an AR15 Complete Upper?
AR-15 complete uppers come pre-assembled with all of the essential components needed to complete the upper portion of your rifle, including the barrel, handguard, gas system, and often the bolt carrier group and charging handle. These assemblies fit seamlessly with any standard AR-15 lower receiver you already have, allowing for easy customization and upgrades. You’re essentially building your own rifle in two simple parts – an upper and a lower. Opting for a complete upper totally eliminates the complexities and potential pitfalls of assembling an upper receiver part by part, saving you time and ensuring all components function harmoniously. Installing your new complete upper is as easy as popping two pins on your lower in and out.
Key Features to Consider
As you dive into our collection of uppers at Black Rifle Depot, there are a few key areas you should be thinking about. The beauty of the AR-15 is that the configurations available to you are almost endless. Unfortunately, this wealth of possibilities can also make shopping for a complete upper overwhelming. No worries, let's break down some main areas of focus as you determine the right upper for you.
Barrel Length and Material:
This is perhaps the most important question as you begin your journey to create your ideal AR. AR-15 complete uppers are available in various barrel lengths, typically 16", 18", and 20". As you consider purchasing a complete upper, remember shorter barrels offer maneuverability, while longer barrels somewhat enhance accuracy and velocity at extended ranges. As for what a barrel is made of, stainless steel provides corrosion resistance, whereas chrome-moly barrels are valued for their robustness. Several factors influence accuracy, including quality, chambering, and the ammo you go with. With all that said, if you're building your first rifle, you can't go wrong with a 16" at a price point that works for you.
Gas System:
The gas system is crucial to the AR-15's operation, with direct impingement and piston systems being the most common. As you consider purchasing a complete upper, note that direct impingement systems are standard and lightweight, while piston systems offer cleaner operation and reliability under adverse conditions. Most of the uppers you find at Black Rifle Depot operate using the classic direct impingement system, which we believe is the best approach for almost all shooters.
Chambering and Twist Rate:
Popular chamberings include 5.56 NATO, 300 Blackout and .223 Wylde. As you consider purchasing a complete upper, the twist rate, indicating how many inches it takes for the rifling to complete one full rotation, affects bullet stabilization. Common twist rates like 1:7, 1:8, and 1:9 suit different bullet weights and applications. For most, a 1:7 twist is a good place to start.
Reputation Matters:
Selecting a complete upper from reputable manufacturers such as Strike Industries, aero precision, Dirty Bird Industries and Blackrifledepot ensures quality and reliability. As you consider purchasing a complete upper, remember that craftsmanship and performance. If you see a lower that is dramatically more expensive, there is probably a reason, with corners being cut somewhere in the process. It never hurts to follow the old adage, “buy once, cry once.”
Durability and Reliability:
Durability is crucial, and AR-15 uppers are built to withstand rigorous use. As you consider purchasing a complete upper, note that corrosion-resistant coatings, robust materials, and high-quality manufacturing processes contribute to the longevity and reliability of the upper receiver.
Value Proposition
At Black Rifle Depot, the convenience of a pre-assembled upper, combined with the baked-in assurance of quality and performance, justifies the price. At Black Rifle Depot, you can have total confidence in any of the uppers we carry, which are from renowned names such as Aero Precision, Battle Arms Development, Colt, CMMG, Faxon, Foxtrot Mike, Dirty Bird, Geissele, Spikes Tactical, and Sons of Liberty. By choosing one of these AR-15 complete uppers from a trusted manufacturer, you get a dependable, high-performing rifle that meets your specific needs, whether for tactical use, competitive shooting, or hunting.
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Out of stock
Colt's Manufacturing LE6920 AR 15 5.56 NATO Complete Upper
Colt Manufacturing
$899.95Colt's Manufacturing LE6920 AR 15 5.56 NATO Complete Upper Colt's commitment to quality and excellence are evident in every piece that leaves the factory. This complete upper assembly is no exception to that rule. Built from the factory as a complete...$899.95 -
Dirty Bird 13.7" Government Midlength .223 Wylde M-LOK V3 Upper Assembly - D107
Dirty Bird Industries
$409.95Dirty Bird 13.7" Government Midlength .223 Wylde M-LOK V3 Upper Assembly This Dirty Bird Industries Complete Upper features a Dirty Bird Midlength Sub-MOA 416R Medium Profile barrel chambered in .223 Wylde with a 1:8 twist. Built on a top-tier Forged...$409.95 -
Out of stock
Dirty Bird 20" M16A1 5.56 Retro Upper Assembly (no M4 feed ramps)
Dirty Bird Industries
MSRP: $669.95$599.95Dirty Bird 20" M16A1 5.56 Retro Upper Assembly (no M4 feed ramps) The Dirty Bird Industries M16A1 20" 5.56 Retro Upper Assembly is the next iteration in the line of DBI's popular Complete Uppers. Dirty Bird Industries has sourced some of the finest...MSRP: $669.95$599.95 -
Faxon Firearms Ascent 10.5" 5.56 Barrel Upper Receiver
Faxon Firearms
$425.00Faxon Firearms Ascent 10.5" 5.56 Barrel Upper Receiver The Faxon Firearms Ascent 10.5" 5.56 Barrel Upper Receiver is the ultimate solution for those seeking to upgrade or build a high-performance AR-15. This premium upper receiver assembly includes a...$425.00 -
Foxtrot Mike FM-15 Gen 2 16" .223 Wylde Lightweight Intermediate M-LOK Complete Upper
Foxtrot Mike
$569.00Foxtrot Mike FM-15 Gen 2 16" .223 Wylde Lightweight Intermediate M-LOK Complete Upper This amazing 16" complete upper from Foxtrot Mike has all of the expensive features and high-quality workmanship that FM Products is quickly becoming famous for, but...$569.00 -
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
Sons of Liberty 13.7" Pinned (16" OAL) Patrol 5.56 Upper
Sons of Liberty Gun Works
MSRP: $800.00$794.95Sons of Liberty Gun Works, 13.7" Pinned (16" OAL) Patrol 5.56 Complete Upper The Sons of Liberty Gun Works 13.7" Pinned (16" OAL) Patrol 5.56 AR 15 Complete Upper embodies the company's unwavering commitment to quality and performance. With a philosophy...MSRP: $800.00$794.95 -
Out of stock
Sons of Liberty Gun Works 11.5" M4-89 Upper
Sons of Liberty Gun Works
MSRP: $900.00$899.95Sons of Liberty Gun Works 11.5" M4-89 Upper The Sons of Liberty Gun Works 11.5" M4-89 Upper - the ultimate upgrade for firearm enthusiasts seeking exceptional performance and reliability in their shooting equipment. This complete upper receiver is...MSRP: $900.00$899.95 -
16" 300 BLK Nitride Carbine M-LOK Upper Assembly
Black Rifle Depot
MSRP: $319.95$284.9516" 300 BLK Nitride Carbine M-LOK Upper Assembly A quality 300 BLK upper assembly without cutting corners. This means starting with a top tier mil-spec forged upper receiver, using a nitrided steel gas block as opposed to phosphate or aluminum, quality...MSRP: $319.95$284.95 -
Out of stock
16″ 5.56 HBAR Fluted Stainless Midlength M-LOK Upper Assembly
Black Rifle Depot
MSRP: $399.99$354.9516″ 5.56 HBAR Fluted Stainless Midlength M-LOK Upper Assembly The 16″ 5.56 HBAR Fluted Stainless Midlength M-LOK Upper Assembly is crafted for quality and reliability without cutting corners. Featuring a brand new HBAR fluted stainless steel...MSRP: $399.99$354.95 -
16″ 5.56 NATO Pencil Midlength Lightweight M-LOK Upper Assembly
Black Rifle Depot
MSRP: $334.95$299.9516″ 5.56 NATO Pencil Midlength Lightweight M-LOK Upper Assembly A quality upper assembly without cutting corners. This means starting with a top tier mil-spec forged upper receiver, using a nitrided steel gas block as opposed to phosphate or...MSRP: $334.95$299.95 -
16" Billet Slick Side 5.56 Parkerized Mid-Length 1:7 M-LOK 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 -
16" Carbine 5.56 NATO 1:7 Complete Upper
Black Rifle Depot
MSRP: $389.95$324.9516" Carbine 5.56 NATO 1:7 Complete Upper Who doesn't like a nice quad rail This upper also features a 16" BCA barrel chambered in 5.56 NATO with a 1:7 twist and a carbine length gas system. This upper uses a nitrided steel gas block from APOC Armory as...MSRP: $389.95$324.95 -
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
7" Aero Precision M4E1 Enhanced Upper Receiver and M-LOK Handguard Combo Gen 2
Aero Precision
MSRP: $251.98$221.957" Aero Precision M4E1 Enhanced Upper Receiver and M-LOK Handguard Combo Gen 2 Aero Precision M4E1 Enhanced Upper Receiver and M-LOK handguard combo comes with the upper and handguard mounting platform. . Gen 2 Aero handguards include many...MSRP: $251.98$221.95 -
7.5" 5.56 DRP Pistol Quad Rail Complete Upper
Black Rifle Depot
MSRP: $499.95$409.957.5" 5.56 DRP Pistol Quad Rail Complete Upper The 7.5" 5.56 DRP Pistol Quad Rail Complete Upper is an affordable yet high-quality option for your pistol build. It features a 7.5" Nitride-treated barrel chambered in 5.56 NATO, paired with American-made...MSRP: $499.95$409.95 -
7.5" Slick Side Billet 300 BLK Nitride Pistol M-LOK Upper Assembly
Black Rifle Depot
MSRP: $279.95$264.957.5" Slick Side Billet 300 BLK Nitride Pistol M-LOK Upper Assembly The 7.5" Slick Side Billet 300 BLK Nitride Pistol M-LOK Upper Assembly offers an affordable, high-quality build without cutting corners. Featuring a 7.5" Nitride-treated barrel chambered...MSRP: $279.95$264.95 -
Out of stock
AERO Precision 16" AR 15 Upper W/A2 Front Sight - Black
Aero Precision
MSRP: $460.00$400.95AERO Precision 16" AR 15 Upper W/A2 Front Sight - Black The AERO Precision 16" AR 15 Upper W/A2 Front Sight in black is a reliable and high-quality upgrade for your AR15 rifle. This upper features a standard AR15 upper receiver, ensuring compatibility...MSRP: $460.00$400.95 -
AERO Precision 16" AR 15 Upper W/A2 Front Sight - FDE
Aero Precision
MSRP: $460.00$400.95AERO Precision 16" AR 15 Upper W/A2 Front Sight - FDE The AERO Precision 16" AR 15 Upper W/A2 Front Sight in Flat Dark Earth is a reliable and high-quality upgrade for your AR15 rifle. This upper features a standard AR15 upper receiver,...MSRP: $460.00$400.95 -
Out of stock
AERO Precision 16" M4E1 Threaded AR 15 Upper
Aero Precision
MSRP: $655.00$560.95AERO Precision 16" M4E1 Threaded AR 15 Upper The AERO Precision 16" M4E1 Threaded AR 15 Upper is a top-notch choice for firearm enthusiasts seeking a high-performance upper receiver for their AR 15 build. The M4E1 Threaded Assembled Upper Receiver...MSRP: $655.00$560.95 -
Aero Precision 5.56 Carbine Upper Assembly - Pinned FSB - MOE SL Handguard - 16"
Aero Precision
MSRP: $455.00$395.95Aero 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...MSRP: $455.00$395.95 -
Aero Precision AR-15 16" 5.56 Complete Upper w/ Pinned FSB, MOE Carbine - FDE
Aero Precision
MSRP: $455.00$395.95Aero 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$395.95 -
Aero Precision AR-15 16" 5.56 Complete Upper w/ Pinned FSB, MOE SL Carbine - FDE
Aero Precision
MSRP: $395.00$346.95Aero Precision AR-15 16" 5.56 Complete Upper w/ Pinned FSB, MOE SL Carbine - FDE This AR15 Complete Upper features a 16" 5.56 Carbine Barrel w/ Pinned FSB and Magpul™ MOE SL® Carbine Handguard Upper Features: Upper: Standard AR15 Upper...MSRP: $395.00$346.95 -
Out of stock
Aero Precision AR-15 16" 5.56 Midlength Complete Upper w/ Pinned FSB, MOE Midlength Handguard – Black
Aero Precision
MSRP: $460.00$394.95Aero Precision AR-15 16" 5.56 Midlength Complete Upper w/ Pinned FSB, MOE Midlength Handguard – Black Get started on your new AR-15 build with this Aero Precision Barreled Upper Receiver. It features a 16” barrel chambered in 5.56 NATO. It...MSRP: $460.00$394.95 -
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$370.95Aero 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$370.95 -
Aero Precision AR-15 Complete Upper, 16 5.56 Mid-Length Barrel w/ Pinned FSB, M4 Handguard
Aero Precision
MSRP: $450.00$390.95Aero Precision AR-15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB & M4 Handguard Elevate your AR-15 with the Aero Precision Complete Upper, a perfect blend of form and function. This unit features a standard AR15 upper receiver paired...MSRP: $450.00$390.95 -
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$554.95Aero 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 Handle Upper...MSRP: $640.00$554.95 -
Aero Precision AR-15 Complete Upper, 16" 5.56 Mid-Length Barrel w/ Pinned FSB, MOE Mid-Length - FDE
Aero Precision
MSRP: $460.00$400.95Aero Precision AR-15 Complete Upper, 16" 5.56 Mid-Length Barrel w/ Pinned FSB, MOE Mid-Length - FDE This AR15 Complete Upper features a 16" 5.56 Mid-Length Barrel w/ Pinned FSB and Magpul™ MOE® Mid-Length Handguard Upper...MSRP: $460.00$400.95 -
Aero Precision AR15 Complete Upper 20" 5.56 w/ Pinned FSB & MOE Handguard - FDE
Aero Precision
MSRP: $485.00$419.95Aero Precision AR15 Complete Upper 20" 5.56 w/ Pinned FSB & MOE Handguard - FDE The 20" barreled AR15 chambered in 5.56 NATO has a lot going for it, high velocity, gentle recoil impulse, increased reliability, longer service life, is easier to...MSRP: $485.00$419.95 -
Out of stock
Aero Precision EPC-9 Enhanced 11" 9mm Complete Upper Receiver w/ Enhanced 9.3" Handguard - Black
Aero Precision
MSRP: $535.00$455.95Aero Precision EPC-9 Enhanced 11" 9mm Complete Upper Receiver w/ Enhanced 9.3" Handguard - Black This EPC-9 Complete Upper Receiver comes standard with our Enhanced Gen 2 Handguard. Enhanced M-LOK Handguards provide a lightweight free float design for...MSRP: $535.00$455.95 -
Out of stock
Aero Precision EPC-9 Enhanced 16" 9mm Complete Upper Receiver w/ Enhanced 15" Handguard - Anodized Black
Aero Precision
MSRP: $585.00$498.95Aero Precision EPC-9 Enhanced 16" 9mm Complete Upper Receiver w/ Enhanced 15" Handguard - Anodized Black This EPC-9 Complete Upper Receiver comes standard with our Enhanced Gen 2 Handguard. Our Enhanced M-LOK Handguards provide a lightweight free float...MSRP: $585.00$498.95 -
Out of stock
Aero Precision EPC-9 Enhanced 8.3" 9mm Complete Upper Receiver w/ Enhanced 7.3" Handguard - Anodized Black
Aero Precision
MSRP: $505.00$432.95Aero Precision EPC-9 Enhanced 8.3" 9mm Complete Upper Receiver w/ Enhanced 7.3" Handguard - Anodized Black This EPC-9 Complete Upper Receiver comes standard with our Enhanced Gen 2 Handguard. Enhanced M-LOK Handguards provide a lightweight free float...MSRP: $505.00$432.95 -
Out of stock
Aero Precision EPC-9 Enhanced 8.3" 9mm Complete Upper Receiver w/ Enhanced 7.3" Handguard - FDE Cerakote
Aero Precision
MSRP: $545.00$465.95Aero Precision EPC-9 Enhanced 8.3" 9mm Complete Upper Receiver w/ Enhanced 7.3" Handguard - FDE Cerakote This EPC-9 Complete Upper Receiver comes standard with the Enhanced Gen 2 Handguard. The Enhanced M-LOK Handguards provide a lightweight free float...MSRP: $545.00$465.95 -
Out of stock
Aero Precision EPC-9 Threaded 11" 9mm Complete Upper Receiver w/ ATLAS R-ONE 10.3" Handguard - Anodized Black
Aero Precision
MSRP: $550.00$470.95Aero Precision EPC-9 Threaded 11" 9mm Complete Upper Receiver w/ ATLAS R-ONE 10.3" Handguard - Anodized Black The Aero Precision EPC-9 Barreled Upper Receiver with LRBHO is a top-tier component designed for firearm enthusiasts who prioritize precision...MSRP: $550.00$470.95 -
Out of stock
Aero Precision EPC-9 Threaded 11" 9mm Complete Upper Receiver w/ ATLAS R-ONE 10.3" Handguard - FDE Cerakote
Aero Precision
MSRP: $590.00$503.95Aero Precision EPC-9 Threaded 11" 9mm Complete Upper Receiver w/ ATLAS R-ONE 10.3" Handguard - FDE Cerakote This EPC-9 Complete Upper Receiver comes standard with our ATLAS R-ONE Handguard. The R-ONE handguards are designed with size and weight in mind,...MSRP: $590.00$503.95 -
Out of stock
Aero Precision EPC-9 Threaded 5.5" 9mm Complete Upper Receiver w/ ATLAS R-ONE 4.8" Handguard - FDE Cerakote
Aero Precision
MSRP: $530.00$451.95Aero Precision EPC-9 Threaded 5.5" 9mm Complete Upper Receiver w/ ATLAS R-ONE 4.8" Handguard - FDE Cerakote This EPC-9 Complete Upper Receiver comes standard with our ATLAS R-ONE Handguard. The R-ONE handguards are designed with size and weight in mind,...MSRP: $530.00$451.95 -
Out of stock
Aero Precision EPC-9 Threaded 8.3" 9mm Barreled Upper Receiver w/ ATLAS R-ONE 7.3" Handguard
Aero Precision
MSRP: $510.00$436.95Aero Precision EPC-9 Threaded 8.3" 9mm Barreled Upper Receiver w/ ATLAS R-ONE 7.3" Handguard This EPC-9 Complete Upper Receiver comes standard with our ATLAS R-ONE Handguard. The R-ONE handguards are designed with size and weight in mind,...MSRP: $510.00$436.95 -
Aero Precision M4E1 Complete Upper 10" .300 Blackout Barrel EM-9 Gen 2 Handguard - Anodized Black
Aero Precision
MSRP: $615.00$535.95Aero Precision M4E1 Complete Upper 10" .300 Blackout Barrel EM-9 Gen 2 Handguard - Anodized Black This Complete Upper includes our Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for...MSRP: $615.00$535.95 -
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 Required No Made In...MSRP: $630.00$545.95