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Questions & Answers
Can I fit a suppressor on this upper? Expert Answer

The Aero Precision M4E1 Threaded Complete Upper has a barrel that is threaded for 1/2x28. So if you had a 5.56/.223 caliber suppressor with those threads it could be used with the Aero Precision M4E1 Threaded Complete Upper.

by Hunter, Gear Expert, April 28, 2022
is this a pistol or rifle upper? Expert Answer

The barrel length is one of the determining factors in whether the Aero Precision M4E1 Threaded Complete Upper is a pistol or rifle. So it will depend on what model of the Aero Precision M4E1 Threaded Complete Uppers you are asking about. Please email us at techsales@opticsplanet.com for more information.

by Hunter, Gear Expert, February 24, 2022

Product Discontinued by Manufacturer

Aero Precision M4E1 Threaded 20in .223 Wylde Complete Upper with Flash Hider has been discontinued by Aero Precision and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

ATTENTION! We currently do not ship this product to AK, CA, HI, IL, NY, WA, P.O. Boxes, and U.S. Territories. Please see our policies for more information.

Product Info for Aero Precision M4E1 Threaded 20in .223 Wylde Complete Upper with Flash Hider

M4E1 Threaded Complete Upper, 20" .223 Wylde Barrel, ATLAS R-ONE 7" M-LOK HG, Anodizedimage

Features of Aero Precision M4E1 Threaded 20in .223 Wylde Complete Upper with Flash Hider

  • Chamber: .223 Wylde
  • Length: 10in
  • Twist: 1 in 7
  • Threading: 1/2inx28
  • Material: Chrome Moly Vanadium
  • Finish: QPQ corrosion resistant finish both inside and out
  • Gas Block: .750
  • Gas System Length: Pistol
  • Weight: 17.25 oz
  • M4 Barrel Extension
  • HP and MPI Tested

Package Contents:

  • Aero Precision M4E1 Threaded 20in .223 Wylde Complete Upper with Flash Hider

Aero Precision M4E1 Threaded 20in .223 Wylde Complete Upper with Flash Hider Accessories

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Gunsmithing Tools & Accessories

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Gun Triggers

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Gun Parts and Accessories

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Gun Barrels

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Magazine and Accessories

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Gun Sights

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Gun Stocks

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Mounts, Rings and Accessories

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Related Products to Aero Precision M4E1 Threaded 20in .223 Wylde Complete Upper with Flash Hider

Aero Precision M4E1 Threaded 20in .223 Wylde Complete Upper with Flash Hider Unavailable & Discontinued Models

List of Unorderable Models

  • Aero Precision M4E1-T Complete Upper, 20in .223 Wylde Fluted BRL 15in M-LOK ATLAS S-ONE HG, Anodized Black, APAR700305M60 , MPN: APAR700305M60 , UPC: 840014608294 , Code: 29D-UFH-M4E1TCUR-APAR700305M60
  • Aero Precision M4E1-T Complete Upper, 20in .223 Wylde Fluted BRL 15in M-LOK ATLAS R-ONE HG, Anodized Black, APAR700705M60 , MPN: APAR700705M60 , UPC: 840014602094 , Code: 29D-UFH-M4E1TCUR-APAR700705M60
  • Aero Precision M4E1-T Complete Upper, 20in .223 Wylde Fluted BRL 15in M-LOK ATLAS S-ONE HG, FDE, APAR700315M60 , MPN: APAR700315M60 , UPC: 840014608300 , Code: 29D-UFH-M4E1TCUR-APAR700315M60
  • Aero Precision M4E1-T Complete Upper, 20in .223 Wylde Fluted BRL 15in M-LOK ATLAS R-ONE HG, FDE, APAR700715M60 , MPN: APAR700715M60 , UPC: 840014602872 , Code: 29D-UFH-M4E1TCUR-APAR700715M60
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