AR-15 UPPER RECEIVERS

AR-15 UPPER RECEIVERS

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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

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
Aero Precision EPC-9 Complete Upper - 5.5" Barrel - M-LOK - 9mm

Aero Precision EPC-9 Complete Upper - 5.5" Barrel - M-LOK - 9mm

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, 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
  • 4.8" ATLAS R-ONE Handguard
  • 5.5" 9mm CMV Barrel
  • Product comes assembled
  • This complete upper receiver does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab
  • 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 R-ONE Handguard Features:

  • Full top picatinny rail for optional attachments
  • 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

5.5" 9mm Barrel Features

  • Chamber: 9x19
  • Length: 5.5"
  • Twist: 1 in 10
  • Threading: 1/2"x28
  • Material: Chrome Moly Vanadium
  • Finish: QPQ corrosion resistant finish both inside and out

APAR620708M84

Out of stock

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

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

Aero Precision EPC-9 threaded complete upper receiver, 8.3" 9mm barrel, RM7.3 - Anodized. Minus BCG and Charging Handle.

APAR620701M85

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.