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

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

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

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

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

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:

• M4 Feedramps
• .2795 takedown pin holes (DPMS size)
• Lazer engraved T-marks
• DPMS High Profile (.210) Tang

Everything you need to build out a high quality AR15 carbine using whatever lower receiver you want. Built, test-fired, and quality checked in house, our AR15 pistol kits will provide you a lifetime of reliable service. We use only the finest USA manufactured parts. Each unit is assembled with care and fully tested to ensure that your build will function the first time. Compatible with any mil-spec dimension AR15 lower receiver.

• Upper Receiver
  • 10.5" 4150CMV Barrel - 1:7 twist - carbine gas system - nitride finish
  • 10.5" free float MLOK hand guard with one rail section
  • Forged 7075-T6 upper receiver
  • Nitride finish BCG with 9310 bolt
  • WLA A2 style flash hider
• Lower Parts Kit
• Buffer Tube Kit
  • Mil-spec dimension buffer tube
  • Carbine weight buffer
  • Carbine buffer spring
  • Standard end plate and castle nut
• SB Tactical SBA3 Brace
• 100% USA made
• No FFL Required

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

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

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

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

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

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

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

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

Aero Precision M4E1-T Complete Upper featuring the 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. 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.

M4E1-T Upper Features:

• New enhanced forging that gives the upper receiver a "billet look"
• New picatinny profile that blends seamlessly with our Enhanced Series Handguards
• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• Includes port door and forward assist installed
• HP and MPI tested
• Standard A2 flash hider
• 12" ATLAS S-ONE M-LOK handguard
• Does not include BCG or Charging Handle