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Questions & Answers
does this upper use a ballistics advantage barrel Expert Answer

These use Aero Precision barrels.

by Ethan C., Gear Expert, March 11, 2020
What length gas system does this upper have? Expert Answer

The 16" Aero Precision M4E1 Threaded .223 Wylde Upper Receivers have a mid length gas system and the 18" models have a rifle length gas system.

by Hunter, Gear Expert, June 16, 2022
Customer Reviews
Helpful Positive Review
Aero M4E1 223 wylde upper by ChasingNolan, Verified Owner, July 17, 2020
I finally got some time shoot this upper on my latest build. So far it's been reliable and I am pleased with it's accuracy. I'm shooting 1 MOE groups with it so far with my 55gr handloads and 1x6 scope mounted to it. Although I like Aero's tan col...
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9/10 found this helpful
Helpful Positive Review
If you don't alredy know of the quality of this manufacturer, it means that you are new to the gun world, but I will help you, YES this is the best quality for the price, noting that I'm aware gives you this much quality for this money! Totally reco...
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2/3 found this helpful
Helpful Positive Review
Aero precision upper by Aero Upper, March 19, 2022
Great value for this product. Has all the upper end components for the best price on the market. Stainless barrel in 223wylde, so far very accurate. Matched with hyper tap muzzle brake it is the softest shooting at I have ever experienced. Good for a...
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1/1 found this helpful
Helpful Positive Review
The service and customer support from Optics Planet is the best the you will find in the industry. I added a VG6 Epslion muzzle brake in blasted stainless steal to the order. The muzzle brake matches the finish of the stainless steel barrel and looks...
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1/1 found this helpful
Helpful Positive Review
Nice Quality upper by Wayne, August 31, 2019
Thank you Aero Precision for making quality parts. Recently purchased this 223 Wylde upper....It looks and shoots great. I would recommend taking a close look at Aero's offerings to enhance your shooting enjoyment.
2/2 found this helpful
Helpful Negative Review
Stay away from Aero Precision products! I bought this complete upper and had it for about 2 months before taking it to the range. The first 4 rounds failed to eject and I had to cycle it manually. The 5th round fired and jammed in the chamber. I had...
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14/96 found this helpful
Read All 9 Reviews
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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 Threaded 18in .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver with Flash Hider

This complete upper includes our ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Aero Precision's 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.image

Specifications for Aero Precision M4E1 Threaded 18in .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver with Flash Hider:

Manufacturer: Aero Precision
Caliber: .223 Wylde
Barrel Length: 18 in
Barrel Profile: SPR
Barrel Twist Rate: 1-8
Muzzle Device: A2 Flash Hider
Gun Model: AR-15, M16
Condition: New
Fabric/Material: Aluminum/Steel
Gas Block Journal Size-Diameter: .750 in
Handguard Length: 15 in
Gun Rail: M-LOK
Gun Type: Rifle
Gun Make: AR Platform, Aero Precision
Included Accessories: None, Standard
Barrel Material: 416R Stainless Steel
Weight: 51 oz, 68.5 oz
Magazine Included: No
Model: M4E1
Country of Origin: USA

Features of Aero Precision M4E1 Threaded 18in .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver with Flash Hider

  • 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
  • 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
  • Compatible with low profile gas blocks
  • Compatible with mil-spec AR15 upper receivers and barrels

Package Contents:

  • Aero Precision M4E1 Threaded 18in .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver with Flash Hider

Aero Precision M4E1 Threaded 18in .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver with Flash Hider Orderable Models

List of Orderable Models

  • Aero Precision Complete Upper Receiver, M4E1-T, .223, 18in, Wylde Barrel, 15in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700305M42 , MPN: APAR700305M42 , UPC: 840014601981 , Code: 29D-UFH-M4E1T22318W-APAR700305M42
  • Aero Precision Complete Upper Receiver, M4E1-T, .223, 18in, Wylde Barrel, 15in M-LOK ATLAS S-ONE Handguard, Flat Dark Earth, APAR700315M42 , MPN: APAR700315M42 , Code: 29D-UFH-M4E1T22318W-APAR700315M42

Aero Precision M4E1 Threaded 18in .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver with Flash Hider Unavailable & Discontinued Models

List of Unorderable Models

  • Aero Precision M4E1 Threaded .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver, 18 inch Barrel, 1-8 Twist, A2 Flash Hider, Anodized, Black, APAR700106M76 , MPN: APAR700106M76 , UPC: 840014618514 , Code: 29D-UFH-M4E1T22318W-APAR700106M76
  • Aero Precision Complete Upper Receiver, M4E1-T, .223, 18in, Wylde Barrel, 15in KeyMod ATLAS S-ONE Handguard, Anodized Black, APAR700205P42 , MPN: APAR700205P42 , Code: 29D-UFH-M4E1T22318W-APAR700205P42
  • Aero Precision M4E1 Threaded .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver, 18 inch Barrel, 1-8 Twist, A2 Flash Hider, Magpul Cerakote, Flat Dark Earth, APAR700116M76 , MPN: APAR700116M76 , UPC: 840014618521 , Code: 29D-UFH-M4E1T22318W-APAR700116M76
  • Aero Precision Complete Upper Receiver, M4E1-T, .223, 18in, Wylde Barrel, 15in KeyMod ATLAS S-ONE Handguard, Flat Dark Earth, APAR700215P42 , MPN: APAR700215P42 , Code: 29D-UFH-M4E1T22318W-APAR700215P42
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