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Aero Precision M4E1 18in .223 Wylde Complete Upper Receiver with Flash Hider w/ Free Shipping and Handling — 2 models

Aero Precision, M4E1, AR15, .223 Wylde, 18 inch, SS QPQ M-LOK Upper Receiver, Rifle Length, 1-8 Twist, 1/2x28, A2 Flash Hider, Anodized, Black, APAR600251M73
Aero Precision, M4E1, AR15, .223 Wylde, 18 inch, SS QPQ M-LOK Upper Receiver, Rifle Length, 1-8 Twist, 1/2x28, A2 Flash Hider, Cerakote, FDE, APAR600252M73
Aero Precision M4E1 Complete Upper, 18in .223 Wylde Rifle Barrel
Aero Precision, M4E1, AR15, .223 Wylde, 18 inch, SS QPQ M-LOK Upper Receiver, Rifle Length, 1-8 Twist, 1/2x28, A2 Flash Hider, Anodized, Black, APAR600251M73
Aero Precision, M4E1, AR15, .223 Wylde, 18 inch, SS QPQ M-LOK Upper Receiver, Rifle Length, 1-8 Twist, 1/2x28, A2 Flash Hider, Anodized, Black, APAR600251M73
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Aero Precision, M4E1, AR15, .223 Wylde, 18 inch, SS QPQ M-LOK Upper Receiver, Rifle Length, 1-8 Twist, 1/2x28, A2 Flash Hider, Anodized, Black, APAR600251M73
Aero Precision, M4E1, AR15, .223 Wylde, 18 inch, SS QPQ M-LOK Upper Receiver, Rifle Length, 1-8 Twist, 1/2x28, A2 Flash Hider, Cerakote, FDE, APAR600252M73
2 of 4 images
Aero Precision, M4E1, AR15, .223 Wylde, 18 inch, SS QPQ M-LOK Upper Receiver, Rifle Length, 1-8 Twist, 1/2x28, A2 Flash Hider, Cerakote, FDE, APAR600252M73
Aero Precision M4E1 Complete Upper, 18in .223 Wylde Rifle Barrel
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Aero Precision M4E1 Complete Upper, 18in .223 Wylde Rifle Barrel
Aero Precision, M4E1, AR15, .223 Wylde, 18 inch, SS QPQ M-LOK Upper Receiver, Rifle Length, 1-8 Twist, 1/2x28, A2 Flash Hider, Anodized, Black, APAR600251M73
4 of 4 images
Aero Precision, M4E1, AR15, .223 Wylde, 18 inch, SS QPQ M-LOK Upper Receiver, Rifle Length, 1-8 Twist, 1/2x28, A2 Flash Hider, Anodized, Black, APAR600251M73

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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.

Product Info for Aero Precision M4E1 18in .223 Wylde Complete Upper Receiver with Flash Hider

The Aero Precision M4E1 18in .223 Wylde Complete Upper Receiver with Flash Hider is here at Opticsforyou.com and as usual we offer fantastic discounts !image

Purchase your new Aero Precision M4E1 18in .223 Wylde Complete Upper Receiver with Flash Hider from Opticsforyou.com today and you will appreciate the easy checkout process, fantastic customer service, Free Shipping policy and information on easily tracking your order.

The enhanced handguard on the Aero Precision M4E1 .223 Wylde Complete Upper Receiver is a one-piece free float design with built-in anti-rotation tabs. These upper receivers take almost no time to build onto your AR15. You'll be at the range shooting in no time when you add the Aero Precision M4E1 .223 Wylde Complete Upper Receiver to your AR15.

WARNING: California`s Proposition 65

Specifications for Aero Precision M4E1 18in .223 Wylde Complete Upper Receiver with Flash Hider:

Manufacturer: Aero Precision
Caliber: .223 Wylde
Barrel Length: 18 in
Barrel Profile: SPR
Gas System Length: Rifle 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: 7075-T6 Aluminum
Gas Block Journal Size-Diameter: .750 in
Handguard Length: 15 in
Handguard Style: M-LOK w/ Top Picatinny Rail System
Gun Rail: M-LOK
Gun Type: Rifle
Gun Make: AR Platform
Barrel Material: 416R Stainless Steel
Weight: 68.5 oz
Magazine Included: No
Condition: New
Threads per Inch: 1/2x28
Country of Origin: USA

Features of Aero Precision M4E1 18in .223 Wylde Complete Upper Receiver with Flash Hider:

  • M4 Feed Ramp Extension
  • Laser engraved T-marks (Anodized only)
  • 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
  • Built in anti-rotation tabs
  • Scalloped rails
  • Continuous top rail
  • 1.78" inside diameter fits most muzzle devices and 1.5" suppressors
  • Compatible with low profile gas blocks
  • HP and MPI tested

Package Contents:

  • Aero Precision M4E1 18in .223 Wylde Complete Upper Receiver with Flash Hider
  • Barrel Nut
  • Wrench
  • Gen 2 Enhanced Handguard
Last updated 2026-07-15 UTC.