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Aero Precision M4E1-E 13.9in 5.56x45mm NATO EM12.7 Complete Upper Receiver Up to 19% Off and Blazin' Deal w/ Free Shipping — 2 models

Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
1 of 8 images
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
2 of 8 images
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
3 of 8 images
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
4 of 8 images
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
5 of 8 images
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
6 of 8 images
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
7 of 8 images
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99
8 of 8 images
Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99

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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.

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Product Info for Aero Precision M4E1-E 13.9in 5.56x45mm NATO EM12.7 Complete Upper Receiver

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. 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-E 13.9in 5.56x45mm NATO EM12.7 Complete Upper Receiver:

Manufacturer: Aero Precision
Caliber: 5.56x45mm NATO
Overall Length: 23 in
Barrel Length: 13.9 in
Barrel Profile: Government
Gas System Length: Mid Length
Barrel Twist Rate: 1-7
Firearms Threads Per Inch: 1/2x28
Handguard Type: A2
Muzzle Device: A2 Flash Hider
Gun Model: AR-15
Gas Block Journal Size-Diameter: .750 in
Handguard Length: 12.7 in
Handguard Style: M-LOK w/ Top Picatinny Rail System
Gun Rail: M-LOK
Gun Type: Rifle
Gun Make: AR Platform
Barrel Material: 4150 CMV Steel
Bolt Carrier Group Included: No
Charging Handle Included: No
Magazine Included: No
Country of Origin: USA

Features of Aero Precision M4E1-E 13.9in 5.56x45mm NATO EM12.7 Complete Upper Receiver

  • M4E1 Threaded 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
  • Atlas S-One Handguard: Front and rear picatinny rail
  • 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
  • 1.3in Inside diameter
  • 1.5in Outside diameter
  • Compatible with mil-spec AR15 upper receivers and barrels
  • 13.9in 5.56 M4 CMV Barrel, Mid-Length: 5.56 Nato 13.9 Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
  • .750 gas block journal
  • Mid-Length Gas System
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider

Package Contents:

  • Aero Precision M4E1-E 13.9in 5.56x45mm NATO EM12.7 Complete Upper Receiver
  • M4E1 Threaded Assembled Upper Receiver
  • 12.7in ATLAS S-ONE Handguard Of Choice
  • 13.9in 5.56 Mid-Length CMV Barrel
  • Low Profile Gas Block and Pistol Length Gas Tube
  • Product Comes Assembled

What firearm models does the manufacturer say Aero Precision M4E1-E 13.9in 5.56x45mm NATO EM12.7 Complete Upper Receiver is compatible with?

The manufacturer says that Aero Precision M4E1-E 13.9in 5.56x45mm NATO EM12.7 Complete Upper Receiver is compatible with AR-15

Aero Precision M4E1-E 13.9in 5.56x45mm NATO EM12.7 Complete Upper Receiver Orderable Models

List of Orderable Models

  • Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Anodized, Black, APAR600217M99 , MPN: APAR600217M99 , UPC: 840014619948 , Code: 29D-UFH-CMVEM127-APAR600217M99
  • Aero Precision, M4E1-E, AR-15, 5.56x45mm NATO, 13.9in, M-LOK Upper Receiver, Government, CMV Mid Length, 1-7 Twis, 1/2 x 28, A2 Flash Hider, 12.7in Enhanced M-LOK HG, Cerakote, FDE, APAR600284M99 , MPN: APAR600284M99 , UPC: 840014619962 , Code: 29D-UFH-CMVEM127-APAR600284M99
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