AR-15 UPPER RECEIVERS
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Aero Precision M4E1 Assembled Upper Receiver - BLK
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The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075-T6 Aluminum, precision machined to work with all mil-spec AR15 parts and includes the port door and forward assist pre-installed. The M4E1 Threaded Upper Receiver is designed to pair perfectly with te M4E1 Lower Receiver, giving you a billet looking receiver set at a fraction of the billet price. FEATURES:
INCLUDES:
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APAR700201AC
In stock
$139.99
Aero Precision M5 (.308) Stripped Upper Receiver - BLK
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Precision machined to accept standard .308 components and forged from 7075-T6 aluminum, the Aero Precision M5 upper is the ideal fit for your next big bore build. Features:
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APAR308503C
In stock
$159.99
Aero Precision M5 .308 Assembled Upper Receiver - BLK
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The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big bore build. Match this with our M5 .308 lower receiver for a solid and dependable fit. Features:
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APAR308503AC
In stock
$194.99
Aero Precision AR15 Assembled Upper Receiver - BLK
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The AR15 Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil- spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. Features:
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APAR501603AC
In stock
$113.99
Aero Precision AR15 Stripped Upper Receiver - FDE
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The stripped upper receiver is one of Aero's most popular products. Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil-spec M16/M4 specifications and features M4 feed ramps. Match this upper with one of our AR-15 lower receivers for a solid dependable fit. It features M4 feed ramps and .50 take down pin holes. This upper receiver comes in FDE Cerakote finish. NOTE: Requires dust cover, forward assist, charging handle, barrel, handguard, gas block, muzzle device, gas tube and BCG (Bolt Carrier Group) to complete.
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APAR501801C
In stock
$104.99
Aero Precision M4E1 Complete Upper - 16" Mid-Length - M-LOK - .223 Wylde
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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 perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. INCLUDES:
M4E1 THREADED UPPER RECEIVER FEATURES:
ATLAS S-ONE HANDGUARD FEATURES:
16" .223 WYLDE STAINLESS STEEL QPQ BARREL, MID-LENGTH FEATURES:
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APAR700305M72
In stock
$519.00
Aero Precision AR15 Assembled Upper Receiver - OD Green
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The AR15 Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil- spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. Features:
Includes:
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APAR501802AC
Out of stock
Aero Precision AR15 Gen 2 Complete Upper - 16" Mid-Length - M-LOK - .223 Wylde
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Aero Precision AR15 Complete Upper featuring the Gen 2 ATLAS S-ONE Enhanced Handguard. Key features include front and rear picatinny rails, eliminated top center of rail for weight reduction, compatible with low profile gas blocks. Gen 2 Upper Features:
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APAR700305M9
Out of stock
Aero Precision AR15 Stripped Upper Receiver - BLK
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The AR15 Stripped Upper Receiver is one of our most popular products. Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. Features:
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APAR501603C
Out of stock
Aero Precision M4E1 Complete Upper - 14.5" Mid-Length - M-LOK - 5.56mm
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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 perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. We've taken the pain out of building a legal 14.5" rifle build. These pinned and welded 14.5" complete uppers feature an Epsilon 556SL that is permanently affixed to the muzzle providing an overall legal length of 16". Worried you might want to change your gas block? No worries! The outer diameter of the Epsilon 556SL allows you to easily slide your gas block over the muzzle device making it easy to change or service your gas system. If you've had a 14.5" build planned, but didn't want to deal with the hassle of getting it pinned and welded or being stuck with a specific configuration, then our 14.5 pinned and welded barrels/uppers are for you! INCLUDES:
M4E1 THREADED UPPER RECEIVER FEATURES:
ATLAS S-ONE HANDGUARD FEATURES:
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APAR700304M68
Out of stock
Aero Precision M4E1 Complete Upper - 16" - M-LOK - 5.56mm with BCG & Charging Handle
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This complete upper includes the new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Barrel is 5.56 NATO chambering, 16" 1/7 twist, gas port drilled. Carbine Length gas system, M4 feed ramp and a standard A2 flash hider. Also included is the Black Nitrided Bolt Carrier Group & AR15 Breach Ambi charging handle. |
APAR700705M6-kit
Out of stock
Aero Precision M4E1 Complete Upper - 16" Mid-Length - M-LOK - 5.56mm
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This complete upper receiver incudes an HBAR profile barrel that is laser marked "HBAR". INCLUDES:
M4E1 THREADED UPPER FEATURES:
ATLAS S-ONE HANDGUARD FEATURES:
16" 5.56 HBAR BARREL
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APAR700105M97
Out of stock
Daniel Defense DDM4 V7 .223/5.56NATO & 300BLK 16" Upper Receiver Group
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Precision built in the USA, Daniel Defense Rifles are engineered with the tactical professional and shooting enthusiast in mind. The DDM4 V7 is a balanced, do-it-all carbine with a Mil-Spec upper and lower receiver, hammer forged, 16" chrome lined 1:7 barrel with a Daniel Defense flash suppressor, H-Buffer, and mid-length gas system. A free-floating M-LOK MFR 15.0" handguard offers incredible weight savings as well as superior cooling, ergonomics, and modularity while maintaining the strength and durability expected from Daniel Defense. Finished with a Daniel Defense stock and pistol grip, the DDM4 V7 comes with one 32RD Daniel Defense Polymer Magazine, vertical foregrip, manual, and hard case. DDM4V7 300 Upper receiver group has 15" M-Lok Rail, 16" 1:8 twist barrel, Threaded w/DD Flash Hider, Low Profile Gas Blockm M16 Bolt Carrier Group and Grip-N-Rip charging handle. |
02-128-02081-047-COMBO
Out of stock
Daniel Defense MK18 Upper Reciever - 5.56mm
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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 rail features a Bolt-Up System that has been rigorously tested prior to fielding by USSOCOM. The 10.3 inch Cold Hammer Forged barrel is the same length in use for the MK18 upper most commonly used for CQB operations. Its independently ambi GRIP-N-RIP Charging Handle accommodates left- and right-handed shooters. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group. |
23-004-08013-011
Out of stock
White Label Armory AR15 Complete Premium Upper Receiver—16" Barrel, 15" M-LOK Handguard, 5.56 NATO
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The perfect complete upper for your lower, without all the tools required to build it. White Label Armory's complete upper receivers are made from the highest quality American-made components. In-house at DRG Manufacturing we produce the barrel, handguard, upper receiver and BCG. Each complete upper is assembled by WLA's gunsmiths and fully tested to ensure that your build will function the first time. Compatible with any Mil-Spec dimensions AR15 lower receiver. Complete Upper Receiver Includes:
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4027-3410-006
Out of stock
White Label Armory AR15 Complete Upper Receiver 10.5" Barrel - MLOK - 5.56
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The perfect upper for your lower, without all the tools required to build it. White Label Armory complete upper receivers are made from the highest quality USA produced components out there. All of their complete uppers are fully assembled, test fired, and ready to pin to the lower receiver of your choice. As with all of our products, these are guaranteed for life.
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4027-3410-005
Out of stock
White Label Armory AR15 Complete Upper Receiver 16" Barrel - 13" MLOK - 5.56
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White Label Armory AR15 Complete Upper Receiver 16" Barrel - 13" MLOK - 5.56. The perfect upper for your lower, without all the tools required to build it. These complete upper receivers are made from the highest quality USA produced components out there. These complete uppers are fully assembled, test fired, and ready to pin to the lower receiver of your choice. As with all White Label Armory products, these are guaranteed for life.
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4027-3410-003
Out of stock
White Label Armory AR15 Complete Upper Receiver 16" Barrel - 15" MLOK - 5.56
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White Label Armory AR15 Complete Upper Receiver 16" Barrel - MLOK - 5.56. The perfect upper for your lower, without all the tools required to build it. These complete upper receivers are made from the highest quality USA produced components out there. These complete uppers are fully assembled, test fired, and ready to pin to the lower receiver of your choice. As with all White Label Armory products, these are guaranteed for life.
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4027-3410-004
Out of stock
AR-15 Upper Receivers
Find the Upper Receiver Parts You Need for your AR-15 Gun
Customize or begin building sooner with our AR-15 Upper Receivers. We have receivers boasting hard chrome-lined chambers and bores that deliver exceptional endurance and easier maintenance. Choose from a fast 1:7 twist or the popular 1:9 rate in our selection of AR-15 upper receivers. Top names in receiver manufacturing are here, including Rock River Arms, CMMG, and ArmaLite. These makers emphasize testing prior to shipment for your satisfaction. CMMG conducts magnetic particle testing on its barrels, a process which reveals tiny flaws. Order a Carbine Upper Receiver with M4 feed ramps and Bird Cage flash suppressor from this manufacturer.
Get the Rifle You Really Want with AR-15 Upper Receiver Parts
Make a match rifle or a versatile hunting firearm with AR-15 upper receiver parts. The AR15’s modular structure allows you to modify its design to meet your aspirations. Find a flat top so you can reconfigure as needed. We carry an M4 version of the AR15 carbine – its flat top provides a range of sighting options. Many of our AR-15 upper receiver parts are made from higher grade, mil-spec steel and work with existing mil-spec lowers. We’re also your superlative source for AR 15 parts sold individually, from charging handle assemblies to sling mounts.
AR-15 Upper Receiver Assembly Ensures Components Coincide
When you want the complete package, we’re here with assemblies! You can opt for an AR-15 Upper Receiver Assembly featuring a 16-inch barrel and a 1:9 twist, paired with a flash suppressor, mount, bolt assembly and charging handle. A dedicated bolt to match the upper assembly is important to the workings of your AR-15. You’ll also benefit from a handle matched to your barrel. Choose AR-15 upper receiver assemblies backed by precision manufacturing to add to your rifle or when building a firearm from square one.