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Aero Precision M4E1-T 18in .223 Wylde RM15 Complete Upper Receiver Up to 20% Off w/ Free S&H — 4 models

Special offer available for this product. Click here to see!
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, SPR - Fluted, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M51
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, FDE, APAR700315M73
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, Government, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M42
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, Anodize Black, APAR700305M73
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, SPR - Fluted, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M51
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, Government, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M42
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, Anodize Black, APAR700305M73
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, SPR - Fluted, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M51
1 of 7 images
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, SPR - Fluted, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M51
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, FDE, APAR700315M73
2 of 7 images
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, FDE, APAR700315M73
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, Government, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M42
3 of 7 images
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, Government, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M42
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, Anodize Black, APAR700305M73
4 of 7 images
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, Anodize Black, APAR700305M73
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, SPR - Fluted, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M51
5 of 7 images
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, SPR - Fluted, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M51
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, Government, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M42
6 of 7 images
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, Government, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M42
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, Anodize Black, APAR700305M73
7 of 7 images
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, Anodize Black, APAR700305M73

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Customer Reviews
Most Recent Reviews
Excellent upper for Competition or SPR build by GreyKnight, Verified Owner, June 8, 2025
For the money I do not think you could find a better 18" SPR upper. Built mine for tactical / 3 Gun competition and this works flawlessly, great accuracy and low recoil with a wide selection of amm0 from 45 grain .223 to 77 Grain 5.56 OTM. Lightwe...
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Most Recent Reviews
If it functioned it would be fine by BB, Verified Owner, August 12, 2023
Received this product in April. When I finally got out to the range, rifle wouldn't cycle. After replacing the gas block with an adjustable gas block (and making sure the gas port was aligned), I brought it to the range a second time - ran through ...
Read More...
Read All 2 Reviews
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Product Info for Aero Precision M4E1-T 18in .223 Wylde RM15 Complete Upper Receiver

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 handguardsimage

WARNING: California`s Proposition 65

Specifications for Aero Precision M4E1-T 18in .223 Wylde RM15 Complete Upper Receiver:

Manufacturer: Aero Precision
Caliber: .223 Wylde
Barrel Length: 18 in
Gas System Length: Rifle Length
Barrel Twist Rate: 1-8
Threads per Inch: 1/2x28
Handguard Type: A2
Muzzle Device: A2 Flash Hider
Gun Model: AR-15
Condition: New
Gas Block Journal Size-Diameter: .750 in
Handguard Length: 15 in
Gun Type: Rifle
Gun Make: AR Platform
Barrel Material: 416R Stainless Steel
Magazine Included: No
Country of Origin: USA

Features of Aero Precision M4E1-T 18in .223 Wylde RM15 Complete Upper Receiver

  • 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

Package Contents:

  • Aero Precision M4E1-T 18in .223 Wylde RM15 Complete Upper Receiver
  • M4E1 Threaded Assembled Upper Receiver
  • ATLAS R-ONE Handguard Of Choice
  • 18in .223 Wylde Rifle Length Stainless Steel Barrel
  • Low Profile Gas Block
  • Rifle Length Gas Tube

What firearm models does the manufacturer say Aero Precision M4E1-T 18in .223 Wylde RM15 Complete Upper Receiver is compatible with?

The manufacturer suggests that Aero Precision M4E1-T 18in .223 Wylde RM15 Complete Upper Receiver is compatible with AR-15

Aero Precision M4E1-T 18in .223 Wylde RM15 Complete Upper Receiver Orderable Models

List of Orderable Models

  • Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, Anodize Black, APAR700305M73 , MPN: APAR700305M73 , UPC: 815421029154 , Code: 29D-UFH-APUM0218-APAR700305M73
  • Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, FDE, APAR700315M73 , MPN: APAR700315M73 , UPC: 815421029161 , Code: 29D-UFH-APUM0218-APAR700315M73
  • Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, Government, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M42 , MPN: APAR700715M42 , UPC: 840014602742 , Code: 29D-UFH-APUM0218-APAR700715M42
  • Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, SPR - Fluted, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M51 , MPN: APAR700715M51 , UPC: 840014602841 , Code: 29D-UFH-APUM0218-APAR700715M51

Aero Precision M4E1-T 18in .223 Wylde RM15 Complete Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, SPR - Fluted, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M51 , MPN: APAR700715M51-EDEMO , Code: 29D-UFH-APUM0218-APAR700715M51-EDEMO-RE-C
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