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Questions & Answers
What brand of barrel comes with this setup? Expert Answer

Aero Precision does not specifically state who manufactures their barrels for them however they are manufactured to their exact specifications.

by Jonathan D., Gear Expert, June 3, 2019
Is the barrel threaded Expert Answer

The Aero Precision M4E1 Enhanced 16in 5.56 Mid-Length Barrel Quantum Handguard Complete Upper barrel is threaded for 1/2x28.

by Hunter, Gear Expert, September 28, 2022
Customer Reviews
Helpful Positive Review
Nice upper receiver! by Charlie, Verified Owner, February 23, 2024
Got this on my first AR and its so nice! I recommend you this upper assembly for AR.
1/1 found this helpful
Helpful Positive Review
Great complete upper by Joshua Baker, Verified Owner, March 25, 2022
Paired this with my PSA lower receiver. The fit and finish is perfect and loved how the handguard feels. I also used my BCG and charging handle out of my PSA upper and didn't have a single issue. VERY happy with this upper!
1/1 found this helpful
Helpful Positive Review
Fantastic upper by Bob, April 14, 2020
My son wanted to built a higher end AR 15 and this Aero precision upper fit the bill perfectly! I’m getting ready to build a 300 Blackout and Aero precision will be at the top of the page. I highly recommend aero Precision if your looking for a hig...
Read More...
1/1 found this helpful
Most Recent Reviews
I bought this Aero Precision M4E1 Enhanced 16in 5.56 Mid-Length Barrel Quantum Handguard Complete Upper Receiver for my Aero lower and it matched up perfectly. The quality is excellent!! Took this upper out for the first range visit and put 400 rou...
Read More...
Most Recent Reviews
Aero AR-15 budget build by 11onky, Verified Owner, November 8, 2022
Really good quality, i received it on the day they said it would arrive. The upper was the last Piece I needed for my Aero AR-15. I plan on buying a couple more as soon as I can. I am proud to say I put together a brand new Aero AR-15 for half the pr...
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Read All 5 Reviews
Caliber:
5.56x45mm NATO
Overall Length:
26 in
Barrel Length:
16 in
Barrel Profile:
Government
Gas System Length:
Mid Length
Barrel Twist Rate:
1-7
Muzzle Device:
A2 Flash Hider
Finish:
Anodized
Color:
Black
Gun Model:
AR-15
Condition:
New
Gas Block Journal Size-Diameter:
.750 in
Handguard Length:
12 in
Gun Rail:
M-LOK
Gun Make:
AR Platform
Included Accessories:
None
Weight:
48.5 oz, 54.24 oz
Magazine Included:
No
Threads per Inch:
1/2x28

Code: 29D-UFH-M4EH-APAR640104M7

MPN: APAR640104M7

Product No Longer Available

Product Info for Aero Precision M4E1 Enhanced 16in 5.56 Barrel Quantum Handguard Complete Upper Receiver with Flash Hider

Complete your rifle build with this Aero Precision M4E1 Enhanced Assembled Upper Receiver that comes equipped with a Quantum Handguard. These AR15 Upper Receivers by Aero Precision are designed for M4E1 spec receivers and are precision machined. This Aero Precision M4E1 Enhanced Assembled Upper Receiver comes equipped with a Quantum Handguard. The Quantum Handguard is a one-piece, free float design that doesn't limit the mounting capabilities of your accessories. It has a removable 4-slot section for your front sight that you can remove if you wish, and it offers plenty of room for your various KeyMod accessories. Also, this upper receiver is compatible with standard AR15/M4 components and fits most BAR-system handguards. Get all the benefits of a free float design with this complete upper including an M4 feedramp extension, forward assist, and a low profile gas block. Pick up the Aero Precision M4E1 Enhanced Assembled Upper Receiver today to create a powerful weapon platform for all of your keymod accessories.image

Features of Aero Precision M4E1 Enhanced 16in 5.56 Barrel Quantum Handguard Complete Upper Receiver with Flash Hider

  • 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 wrench is 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
  • 1.78in inside diameter fits most muzzle devices and 1.5in suppressors
  • Compatible with low profile gas blocks
  • 16in 5.56 Mid-Length Barrel Features:
  • 5.56 NATO 16in 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
  • Included Accessories:
  • M4E1 Enhanced Assembled Upper Receiver
  • Enhanced Handguard of choice
  • 16in 5.56 CMV Barrel
  • Low Profile Gas Block and Mid-Length Gas Tube
  • Product comes assembled
  • This complete upper does not include BCG or Charging Handle
  • These products may be selected as add-ons under the FINISH YOUR BUILD tab

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Related Products to Aero Precision M4E1 Enhanced 16in 5.56 Barrel Quantum Handguard Complete Upper Receiver with Flash Hider

Aero Precision M4E1 Enhanced 16in 5.56 Barrel Quantum Handguard Complete Upper Receiver with Flash Hider Unavailable & Discontinued Models

List of Unorderable Models

  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 12in M-LOK Handguard, Anodized Black, APAR640104M7 , MPN: APAR640104M7 , Code: 29D-UFH-M4EH-APAR640104M7
  • DEMO, Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 M4 Barrel, Quantum 12in M-LOK Handguard, Anodized Black, APAR640104M6 , MPN: APAR640104M6-DEMO , Code: 29D-UFH-M4EH-APAR640104M6-DEMO
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 M4 Barrel, Quantum 12in KeyMod Handguard, Anodized Black, APAR640004P6 , MPN: APAR640004P6 , Code: 29D-UFH-M4EH-APAR640004P6
  • DEMO, Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 12in M-LOK Handguard, Anodized Black, APAR640104M7 , MPN: APAR640104M7-DEMO , Code: 29D-UFH-M4EH-APAR640104M7-DEMO
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 M4 Barrel, Quantum 12in M-LOK Handguard, Anodized Black, APAR640104M6 , MPN: APAR640104M6 , UPC: 840014603572 , Code: 29D-UFH-M4EH-APAR640104M6
  • DEMO, Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 15in M-LOK Handguard, Anodized Black, APAR640105M7 , MPN: APAR640105M7-DEMO , Code: 29D-UFH-M4EH-APAR640105M7-DEMO
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 12in M-LOK Handguard, Flat Dark Earth, APAR640114M7 , MPN: APAR640114M7 , Code: 29D-UFH-M4EH-APAR640114M7
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 15in KeyMod Handguard, Anodized Black, APAR640005P7 , MPN: APAR640005P7 , Code: 29D-UFH-M4EH-APAR640005P7
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 M4 Barrel, Quantum 12in M-LOK Handguard, Flat Dark Earth, APAR640114M6 , MPN: APAR640114M6 , Code: 29D-UFH-M4EH-APAR640114M6
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 12in KeyMod Handguard, Anodized Black, APAR640004P7 , MPN: APAR640004P7 , Code: 29D-UFH-M4EH-APAR640004P7
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 15in M-LOK Handguard, Anodized Black, APAR640105M7 , MPN: APAR640105M7 , UPC: 840014603701 , Code: 29D-UFH-M4EH-APAR640105M7
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 15in M-LOK Handguard, Flat Dark Earth, APAR640115M7 , MPN: APAR640115M7 , UPC: 840014603718 , Code: 29D-UFH-M4EH-APAR640115M7
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 M4 Barrel, Quantum 15in KeyMod Handguard, Anodized Black, APAR640005P6 , MPN: APAR640005P6 , Code: 29D-UFH-M4EH-APAR640005P6
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 M4 Barrel, Quantum 15in KeyMod Handguard, Flat Dark Earth, APAR640015P6 , MPN: APAR640015P6 , Code: 29D-UFH-M4EH-APAR640015P6
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 12in KeyMod Handguard, Flat Dark Earth, APAR640014P7 , MPN: APAR640014P7 , Code: 29D-UFH-M4EH-APAR640014P7
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 M4 Barrel, Quantum 15in M-LOK Handguard, Anodized Black, APAR640105M6 , MPN: APAR640105M6 , Code: 29D-UFH-M4EH-APAR640105M6
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 M4 Barrel, Quantum 12in KeyMod Handguard, Flat Dark Earth, APAR640014P6 , MPN: APAR640014P6 , Code: 29D-UFH-M4EH-APAR640014P6
  • DEMO, Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 15in M-LOK Handguard, Flat Dark Earth, APAR640115M7 , MPN: APAR640115M7-DEMO , Code: 29D-UFH-M4EH-APAR640115M7-DEMO
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 Mid Barrel, Quantum 15in KeyMod Handguard, Flat Dark Earth, APAR640015P7 , MPN: APAR640015P7 , Code: 29D-UFH-M4EH-APAR640015P7
  • Aero Precision Complete Upper Receiver, M4E1-E, 16in, 5.56 M4 Barrel, Quantum 15in M-LOK Handguard, Flat Dark Earth, APAR640115M6 , MPN: APAR640115M6 , Code: 29D-UFH-M4EH-APAR640115M6
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