AR-15 UPPER RECEIVERS

AR-15 UPPER RECEIVERS

Products

Aero Precision AR15 Assembled Upper Receiver - OD Green

Aero Precision AR15 Assembled Upper Receiver - OD Green

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:

  • M4 Feedramps
  • .250 takedown pin holes
  • Port door and forward assist installed

Includes:

  • AR15 Assembled Upper Receiver in OD Cerakote H-232Q

APAR501802AC

In stock

$119.99

Aero Precision AR15 Gen 2 Complete Upper - 16" Mid-Length - M-LOK - .223 Wylde

Aero Precision AR15 Gen 2 Complete Upper - 16" Mid-Length - M-LOK - .223 Wylde

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:

  • .223 Wylde 16" Midlength Barrel
  • .750 gas block journal
  • Mid-length gas system, .0785 gas port
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider
  • 15" ATLAS S-ONE M-LOK handguard
  • Does not include BCG or Charging Handle

APAR700305M9

In stock

$544.99

Aero Precision AR15 Gen 2 Complete Upper - 16" Mid-Length - M-LOK - 5.56mm

Aero Precision AR15 Gen 2 Complete Upper - 16" Mid-Length - M-LOK - 5.56mm

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:

  • 5.56 NATO 16" Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
  • .750 gas block journal
  • Mid-length gas system, .0785 gas port
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider
  • 15" ATLAS S-ONE M-LOK handguard
  • Does not include BCG or Charging Handle

APAR700305M7

In stock

$499.95

Aero Precision AR15 M4E1-E Complete Upper - 10.5" Barrel - M-LOK - 5.56mm

Aero Precision AR15 M4E1-E Complete Upper - 10.5" Barrel - M-LOK - 5.56mm

M4E1 Upper Features:

  • Forged from 7075 T6 aluminum
  • Precision machined to M4E1 specs
  • M4 feedramps
  • Matte black hard coat anodized Mil 8625 Type 3 Class 2
  • Laser engraved T-marks
  • Comes assembled, with port door and forward assist installed
  • Accepts standard AR15/M16 components
  • Handguard mounting platform is forged into the receiver
  • Works with Aero Precision handguards but also fits most BAR-system handguards
  • Barrel nut and wrench are included

Quantum Handguard Features:

  • 1pc free float design
  • Removable 4-slot picatinny rail section for front sight
  • Built in anti-rotation tabs
  • 7 mounting surfaces for KeyMod accessories
  • 1.78" inside diameter fits most muzzle devices and 1.5" suppressors
  • Compatible with low profile gas blocks

10.5" 5.56 Barrel Features:

  • 5.56 Nato 10.5" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
  • .750 gas block journal
  • Carbine length gas system, .0785 gas port
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider

APAR640102M2

In stock

$439.99

Aero Precision EPC-9 Complete Upper - 8.3" Barrel - M-LOK - 9mm

Aero Precision EPC-9 Complete Upper - 8.3" Barrel - M-LOK - 9mm

This EPC-9 Complete Upper Receiver comes standard with our ATLAS S-ONE Handguard. The S-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.

Includes:

  • EPC-9 Upper Receiver
  • 7.3" ATLAS S-ONE Handguard
  • 8.3" 9mm CMV Barrel
  • Product comes assembled
  • This complete upper receiver does not include BCG or Charging Handle.

  • EPC-9 Upper Receiver Features:

  • Last round bolt hold open mechanism
  • Accepts most AR15 compatible barrel nuts and handguards
  • Dimple above threads to allow for proper handguard timing
  • Standard AR15 takedown/pivot pin lug pattern
  • Machined from custom forged 7075-T6 aluminum

ATLAS S-ONE Handguard Features:

  • Front and rear picatinny rail
  • Eliminated center of top rail for weight reduction
  • Indexing grooves in 12:00 position for positive grip control
  • Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
  • 1.3" Inside diameter
  • 1.5" Outside diameter
  • Compatible with mil-spec AR15 upper receivers and barrels

8.3" 9mm Barrel Features

  • Chamber: 9x19
  • Length: 8.3"
  • Twist: 1 in 10
  • Threading: 1/2"x28
  • Material: Chrome Moly Vanadium
  • Finish: QPQ corrosion resistant finish both inside and out

APAR620101M85

In stock

$419.99

Daniel Defense MK18 Upper Reciever - 5.56mm

Daniel Defense MK18 Upper Reciever - 5.56mm

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

In stock

$1371.00

White Label Armory AR15 Billet Upper Receiver

White Label Armory AR15 Billet Upper Receiver

Machined AR15 billet upper receivers are the perfect compliment to White Label billet lowers. Machined from a solid brick of 7075-T6 aluminum, hand deburred, tumbled, and hard coat anodized, our uppers will provide you a lifetime of service. We ensure that every upper is well within spec and will function perfectly for your build.

  • 7075-T6 aluminum
  • Accepts all milspec components
  • Left side relief allows for most aftermarket battery assist devices
  • Fits all milspec dimension lower receivers
  • Looks great with billet AR15 lower
  • Hard coat anodized

4022-0909-001

In stock

$139.00

White Label Armory AR15 Complete Premium Upper Receiver—16" Barrel, 15" M-LOK Handguard, 5.56 NATO

White Label Armory AR15 Complete Premium Upper Receiver—16" Barrel, 15" M-LOK Handguard, 5.56 NATO

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:

  • 16" Barrel, 4150 CMV, Mid-Length, 1:7 Twist, Government Profile
  • 15" Premium Free Float M-LOK® Handguard
  • Forged 7075-T6 Upper Receiver, Hard Coat Anodized
  • BCG by DRG: 9310 Bolt, Billet Extractor, Blacknitride+™ by H&M
  • A2 Extended Flash Hider, Blacknitride+™ by H&M
  • Billet Charging Handle
  • 100% American Made

4027-3410-006

In stock

$455.95

White Label Armory AR15 Complete Upper Receiver 10.5" Barrel - MLOK - 5.56

White Label Armory AR15 Complete Upper Receiver 10.5" Barrel - MLOK - 5.56

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.

  • 10.5" 4150CMV Barrel - 1:7 twist - carbine gas system - stress relieved - nitride finish
  • 9.85" Premium free float MLOK handguard with one rail section
  • Forged 7075-T6 upper receiver - hard coat anodized
  • WLA bolt carrier group - 9310 bolt - billet extractor - nitride finish
  • WLA flash hider - nitride
  • 100% USA made

4027-3410-005

In stock

$429.95

White Label Armory Complete Upper Receiver, 5.56mm w/ 16" Barrel 15" MLOK

White Label Armory Complete Upper Receiver, 5.56mm w/ 16" Barrel 15" MLOK

The perfect upper for your lower, without all the tools required to build it. Our complete upper receivers are made from the highest quality USA produced components out there. All of our 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.

  • 16" 4150CMV Barrel - 1:7 twist - stress relieved - mid-length gas system - nitride finish
  • 15" Standard free float MLOK handguard
  • Forged 7075-T6 upper receiver - hard coat anodized
  • WLA Bolt Carrier Group - 9310 bolt - billet extractor - H&M nitride finish
  • A2 Flash Hider - nitride finish
  • Billet charging handle
  • 100% USA made

4027-3410-015

In stock

$459.95

Aero Precision AR15 Assembled Upper Receiver - BLK

Aero Precision AR15 Assembled Upper Receiver - BLK

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:

  • M4 Feedramps
  • .250 takedown pin holes
  • Laser engraved T-marks
  • Includes port door and forward assist

APAR501603AC

Out of stock

Out of stock
Aero Precision AR15 Assembled Upper Receiver - FDE Cerakote

Aero Precision AR15 Assembled Upper Receiver - FDE Cerakote

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. This assembled upper receiver is finished in FDE Cerakote.

Features:

  • M4 Feedramps
  • .250 takedown pin holes
  • Finished in in FDE Cerakote
  • Includes port door and forward assist

APAR501801AC

Out of stock

Out of stock
Aero Precision AR15 M4E1-E Complete Upper - 7.5" Barrel - M-LOK - 5.56mm

Aero Precision AR15 M4E1-E Complete Upper - 7.5" Barrel - M-LOK - 5.56mm

Aero Precision AR15 Complete Upper featuring the QUANTUM Handguard. Anodized Black.

Features:

  • M4E1-E Threaded Assembled Upper Receiver
  • Quantum 7" Handguard
  • 7.5" 5.56 Pistol Length CMV Barrel
  • Low Profile Gas Block and Pistol Length Gas Tube
  • Product comes assembled
  • New enhanced forging that gives the upper receiver a "billet look"
  • M4 Feedramps
  • .250 takedown pin holes
  • Laser engraved T-marks
  • Includes port door and forward assist installed
  • Does not include BCG or Charging Handle

APAR640101M0

Out of stock

Out of stock
Aero Precision AR15 Stripped Upper Receiver - BLK

Aero Precision AR15 Stripped Upper Receiver - BLK

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:

  • M4 Feedramps
  • .250 takedown pin holes
  • Laser engraved T-marks

APAR501603C

Out of stock

Out of stock
Aero Precision AR15 Stripped Upper Receiver - FDE

Aero Precision AR15 Stripped Upper Receiver - FDE

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.

APAR501801C

Out of stock

Out of stock
Aero Precision AR15 Stripped Upper/Lower Receiver Set - BLK

Aero Precision AR15 Stripped Upper/Lower Receiver Set - BLK



Upper Receiver Features:

  • Machined from 7075-T6 forged aluminum
  • M4 Feedramps
  • .250” takedown pin holes
  • Works with standard AR15 components

Lower Receiver Features:

  • Machined from 7075-T6 forged aluminum
  • Upper Tension Screw
  • Flared Magwell
  • Rear takedown pin detent hole is threaded for a 4-40 set screw
  • Works with standard AR15 components and magazines

APCS100002S

Out of stock

Out of stock
Aero Precision AR15 Stripped Upper/Lower Receiver Set - FDE

Aero Precision AR15 Stripped Upper/Lower Receiver Set - FDE

Upper Receiver Features:

  • Machined from 7075-T6 forged aluminum
  • Coating:FDE Cerakote finish
  • M4 Feedramps
  • .250” takedown pin holes
  • Accepts standard AR15/M16 components

Lower Receiver Features:

  • Machined from 7075-T6 forged aluminum
  • Coating:Magpul™ FDE Cerakote finish
  • Works with standard AR15 components and magazines
  • Rear takedown pin detent hole is threaded for a 4-40 set screw

APCS100008S

Out of stock

Out of stock
Aero Precision EPC-9 Complete Upper - 11" Barrel - M-LOK - 9mm

Aero Precision EPC-9 Complete Upper - 11" Barrel - M-LOK - 9mm

This EPC-9 Complete Upper Receiver comes standard with our ATLAS S-ONE Handguard. The S-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.

Includes:

  • EPC-9 Upper Receiver
  • 10.5" ATLAS S-ONE Handguard
  • 11" 9mm CMV Barrel
  • Product comes assembled
  • This complete upper receiver does not include BCG or Charging Handle.
  • The muzzle device included with this complete upper receiver is NOT pinned nor welded to this barrel.

EPC-9 Upper Receiver Features:

  • Last round bolt hold open mechanism
  • Accepts most AR15 compatible barrel nuts and handguards
  • Dimple above threads to allow for proper handguard timing
  • Standard AR15 takedown/pivot pin lug pattern
  • Machined from custom forged 7075-T6 aluminum

ATLAS S-ONE Handguard Features:

  • Front and rear picatinny rail
  • Eliminated center of top rail for weight reduction
  • Indexing grooves in 12:00 position for positive grip control
  • Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
  • 1.3" Inside diameter
  • 1.5" Outside diameter
  • Compatible with mil-spec AR15 upper receivers and barrels

11" 9mm Barrel Features:

  • Chamber: 9x19
  • Length: 11"
  • Twist: 1 in 10
  • Threading: 1/2"x28
  • Material: Chrome Moly Vanadium
  • Finish: QPQ corrosion resistant finish both inside and out

APAR620103M86

Out of stock

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.