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Aero Precision M4E1 Threaded 16in .223 Wylde Complete Upper Receiver with Flash Hider Up to 19% Off w/ Free S&H — 2 models

Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, FDE Cerakote, APAR700715M72
Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, Black Anodized, APAR700705M72
Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, FDE Cerakote, APAR700715M72
Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, Black Anodized, APAR700705M72
Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, FDE Cerakote, APAR700715M72
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Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, FDE Cerakote, APAR700715M72
Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, Black Anodized, APAR700705M72
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Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, Black Anodized, APAR700705M72
Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, FDE Cerakote, APAR700715M72
3 of 4 images
Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, FDE Cerakote, APAR700715M72
Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, Black Anodized, APAR700705M72
4 of 4 images
Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, Black Anodized, APAR700705M72

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ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.

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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 16in .223 Wylde Complete Upper Receiver with Flash Hider

This complete upper includes our new 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.image

WARNING: California`s Proposition 65

Specifications for Aero Precision M4E1 Threaded 16in .223 Wylde Complete Upper Receiver with Flash Hider:

Manufacturer: Aero Precision
Caliber: .223 Wylde
Overall Length: 26 in
Barrel Length: 16 in
Barrel Profile: Standard, SPR
Gas System Length: Mid Length
Barrel Twist Rate: 1-8
Firearms Threads Per Inch: 1/2x28
Handguard Type: Free-Float
Muzzle Device: A2 Flash Hider
Gun Model: AR-15
Fabric/Material: 416R Stainless Steel
Gas Block Journal Size-Diameter: .750 in
Handguard Length: 15 in
Handguard Style: M-LOK ATLAS R-ONE
Gun Rail: Picatinny, M-LOK
Gun Type: Rifle
Gun Make: AR Platform
Barrel Material: 416 Stainless Steel
Weight: 48.5 oz
Magazine Included: No
Condition: New
Country of Origin: USA

Features of Aero Precision M4E1 Threaded 16in .223 Wylde Complete Upper Receiver with Flash Hider

  • Enhanced forging that gives the upper receiver a "billet look".
  • Picatinny profile that blends seamlessly with our Enhanced Series Handguards.
  • .250 takedown pin holes.
  • Laser engraved T-marks.
  • Includes port door and forward assist installed.
  • Full top picatinny rail for optional attachments.
  • 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 16in .223 Wylde Complete Upper Receiver with Flash Hider

What firearm models does the manufacturer say Aero Precision M4E1 Threaded 16in .223 Wylde Complete Upper Receiver with Flash Hider is compatible with?

The manufacturer says that Aero Precision M4E1 Threaded 16in .223 Wylde Complete Upper Receiver with Flash Hider is compatible with AR-15

Aero Precision M4E1 Threaded 16in .223 Wylde Complete Upper Receiver with Flash Hider Orderable Models

List of Orderable Models

  • Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in HG, Black Anodized, APAR700705M72 , MPN: APAR700705M72 , UPC: 840014613182 , Code: 29D-UFH-AEWYL16-APAR700705M72
  • Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, Standard, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in HG, FDE Cerakote, APAR700715M72 , MPN: APAR700715M72 , UPC: 840014613199 , Code: 29D-UFH-AEWYL16-APAR700715M72

Aero Precision M4E1 Threaded 16in .223 Wylde Complete Upper Receiver with Flash Hider Unavailable & Discontinued Models

List of Unorderable Models

  • Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, HBAR, 4150 CMV Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in HG, Black Anodized, APAR700705M9 , MPN: APAR700705M9 , UPC: 840014602186 , Code: 29D-UFH-AEWYL16-APAR700705M9
  • Aero Precision M4E1, AR-15, .223 Wylde, 16in, M-LOK Atlas R-One Threaded Upper Receiver, HBAR, 4150 CMV Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in HG, FDE Cerakote, APAR700715M9 , MPN: APAR700715M9 , UPC: 840014602193 , Code: 29D-UFH-AEWYL16-APAR700715M9
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Last updated 2026-07-07 UTC.