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Aero Precision M4E1 223 Remington/5.56 NATO Enhanced Upper Receiver Up to 10% Off w/ Free Shipping — 4 models

Aero Precision APAR600201AC M4E1 Enhanced Upper Receiver 223 Remington/5.56 NATO
Aero Precision M4E1 Enhanced Stripped Upper Receiver, OD Green, APAR600215AC
Aero Precision M4E1 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC
Aero Precision M4E1 Enhanced Assembled Upper Receiver, FDE, APAR600202AC
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Stripped Upper Receiver, OD Green, APAR600215AC
Aero Precision M4E1 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC
Aero Precision M4E1 Enhanced Assembled Upper Receiver, FDE, APAR600202AC
Aero Precision APAR600201AC M4E1 Enhanced Upper Receiver 223 Remington/5.56 NATO
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Aero Precision APAR600201AC M4E1 Enhanced Upper Receiver 223 Remington/5.56 NATO
Aero Precision M4E1 Enhanced Stripped Upper Receiver, OD Green, APAR600215AC
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Aero Precision M4E1 Enhanced Stripped Upper Receiver, OD Green, APAR600215AC
Aero Precision M4E1 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC
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Aero Precision M4E1 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC
Aero Precision M4E1 Enhanced Assembled Upper Receiver, FDE, APAR600202AC
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Aero Precision M4E1 Enhanced Assembled Upper Receiver, FDE, APAR600202AC
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
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Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
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Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
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Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
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Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
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Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
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Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
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Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO
Aero Precision M4E1 Enhanced Stripped Upper Receiver, OD Green, APAR600215AC
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Aero Precision M4E1 Enhanced Stripped Upper Receiver, OD Green, APAR600215AC
Aero Precision M4E1 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC
13 of 14 images
Aero Precision M4E1 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC
Aero Precision M4E1 Enhanced Assembled Upper Receiver, FDE, APAR600202AC
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Aero Precision M4E1 Enhanced Assembled Upper Receiver, FDE, APAR600202AC

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Questions & Answers
how many foot pounds should the barrel nut be torqued to? Expert Answer

The Aero Precision M4E1 Enhanced Upper Receiver barrel nut should be torqued to 55ft/lbs.

by Hunter, Gear Expert, November 14, 2022
What Aero Precision Handguard will work with this upper receiver? Expert Answer

The Aero Precision M4E1 Enhanced Upper Receiver will work with the Aero Precision Enhanced and Quantum Series handguards. The handguards at the link below will work.
https://www.opticsplanet.com/aero-precision-ar15-enhanced-m-lok-handguard-gen-2-anodized-black-7in.html

by Hunter, Gear Expert, August 12, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Lets you skip all issues related to barrel nut clamp type handguards by Gerry, Verified Owner, September 27, 2024
This upper receiver design was created to address long running issues with free float handguards that use the typical two bolt barrel clamp design. The problem there is that most of those designs use a short proprietary barrel nut as the bearing sur...
Read More...
1/1 found this helpful
Helpful Positive Review
Excellent - Aero Precision M4E1 Enhanced Upper Receiver by Anonymous, Verified Owner, June 2, 2024
The Aero Precision M4E1 Enhanced Upper Receiver is great and the Aero Precision enhanced handguard fits it like a glove. There is no need to try and torque the barrel nut to the correct position to make the handguard align. Just torque the barrel nut...
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1/2 found this helpful
Helpful Positive Review
It’s an upper by TES82, Verified Owner, March 13, 2024
Pretty cut and dry. The enhance feature is nice eliminating the need to time the barrel nut.
1/1 found this helpful
Helpful Positive Review
Aero enhanced upper by Brandon, January 3, 2020
Good quality. Tolerances are nice and tight. Make sure you buy the right handguard if buying the handguard as these only take the Aero Precision enhanced handguard that are specific to this upper. Also having the screw pin for the coward assist inste...
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2/3 found this helpful
Helpful Positive Review
Aero M4A1 Enhanced by Jordan, March 10, 2020
Exceeded my expectations for being a forged upper receiver. Not having to time a barrel nut for the gas tube is a bonus as well. Very light weight and feels like it has a fantastic finish on it. Matches up great on my Seekins SP223 lower as far as fi...
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1/2 found this helpful
Helpful Positive Review
Aero Precision just got a new fan by West Texas, Verified Owner, August 10, 2022
Looking at the reviews of people having issues with the barrel nut and its associated tool that Aero includes had me a bit anxious. This build is now my 10 year old grandsons varmint rig. We chose the Proof Research 22 inch carbon wrapped 22 Nosler c...
Read More...
2/2 found this helpful
Read All 25 Reviews
4 Models Available
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Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Aero Precision M4E1 223 Remington/5.56 NATO Enhanced Upper Receiver

Aero Precision APAR600201AC M4E1 Enhanced Upper Receiver 223 Remington/5.56 NATO - The M4E1 upper receiver is a one-piece design combining the handguard mounting platform with the upper itself. It is machined from 7075-T6 aluminum with, M4 feedramps, .250 takedown pin holes, and supports barrels with a diameter up to 1". Included is a barrel nut and wrench, port door and forward assist. This model has a black hardcoat anodized finish. NOTE: This upper is not piston-kit compatible.image

WARNING: California`s Proposition 65

Specifications for Aero Precision APAR600201AC M4E1 Enhanced Upper Receiver 223 Remington/5.56 NATO:

Mfg Item Num:  APAR600201AC
Supplier SKU:  100541
Category:  UPPERS
Receiver Finish:  Black Hard Coat Anodized
Type:  Complete Gas Impingement
Caliber:  223 Remington/5.56 NATO
Sights:  None, Optic Ready
Receiver Description:  7075-T6 Aluminum

Package Contents:

  • Aero Precision M4E1 5.56 NATO Enhanced Upper Receiver

Aero Precision M4E1 223 Remington/5.56 NATO Enhanced Upper Receiver Orderable Models

List of Orderable Models

  • Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO , MPN: APAR600201AC , UPC: 815421022339 , Code: 29D-UPR-LKSX-APAR600201AC
  • Aero Precision M4E1 Enhanced Stripped Upper Receiver, OD Green, APAR600215AC , MPN: APAR600215AC , UPC: 840014622047 , Code: 29D-UPR-LKSX-APAR600215AC
  • Aero Precision M4E1 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC , MPN: APAR600216AC , UPC: 840014622054 , Code: 29D-UPR-LKSX-APAR600216AC
  • Aero Precision M4E1 Enhanced Assembled Upper Receiver, FDE, APAR600202AC , MPN: APAR600202AC , UPC: 815421022346 , Code: 29D-UPR-LKSX-APAR600202AC

Aero Precision M4E1 223 Remington/5.56 NATO Enhanced Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO , MPN: APAR600201AC-EDEMO , Code: 29D-UPR-LKSX-APAR600201AC-EDEMO-IN-D
  • USED, Aero Precision M4E1 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC , MPN: APAR600216AC-EDEMO , Code: 29D-UPR-LKSX-APAR600216AC-EDEMO-IN-D
  • DEMO, Aero Precision M4E1 Enhanced Assembled Upper Receiver, FDE, APAR600202AC , MPN: APAR600202AC-DEMO , Code: 29D-UPR-LKSX-APAR600202AC-DEMO
  • DEMO, Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO , MPN: APAR600201AC-DEMO , Code: 29D-UPR-LKSX-APAR600201AC-DEMO
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