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Rifle Parts Receiver Parts Receivers Upper Receivers AERO PRECISION M4E1 5.56 ASSM UPPR 16" MID-LEN 15" M-LOK ATLAS S-ONE HG BLK Support

The M4E1 5.56 Assembled Upper features an ATLAS S-ONE Handguard, lightweight design, M4 feed ramps, and options for 16" or 18" barrels, perfect for your build.

AERO PRECISION M4E1 5.56 ASSM UPPR 16" MID-LEN 15" M-LOK ATLAS S-ONE HG BLK

840014601585 100054450

Filters:

Variations
Filters:
Variations:

Variations:

The M4E1 5.56 Assembled Upper features an ATLAS S-ONE Handguard, lightweight design, M4 feed ramps, and options for 16" or 18" barrels, perfect for your build.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 16" MID-LEN 15" M-LOK ATLAS S-ONE HG BLK
813.5 GBP 0 £813.50 *
Not available
Cartridge: 5.56 mm NATO Color: Black Finish: Anodized Length: 16'' Make: AR-15 Style: Complete Twist: 1-7 Product no.: 100054450
Not available
813.5 GBP 0 £813.50 *
The Aero Precision M4E1 5.56 Upper features a lightweight ATLAS S-ONE Handguard, durable build, and options for 16" or 18" barrels, perfect for your AR15.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 11.5" CARBINE 9" ATLAS S-ONE HG BLK
589.9 GBP 0 £589.90 *
Not available
Cartridge: 5.56 mm NATO Color: Black Contour: M4 Finish: Anodized Length: 11.5'' Make: AR-15 Style: Complete Product no.: 100036051
Not available
589.9 GBP 0 £589.90 *
The Aero Precision M4E1 5.56 Upper features a lightweight ATLAS S-ONE Handguard, durable construction, and options for 16" or 18" barrels, perfect for custom builds.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 11.5" CARBINE 9" ATLAS S-ONE HG FDE
609.9 GBP 0 £609.90 *
Not available
Cartridge: 5.56 mm NATO Color: Flat Dark Earth Contour: M4 Finish: Anodized Length: 11.5'' Make: AR-15 Style: Complete Product no.: 100036052
Not available
609.9 GBP 0 £609.90 *
The Aero Precision M4E1 5.56 Upper features a lightweight ATLAS S-ONE Handguard, durable construction, and a choice of 16" or 18" barrels for versatile performance.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 16" MID-LEN 12" M-LOK ATLAS S-ONE HG BLK
797.8 GBP 0 £797.80 *
Not available
Cartridge: 5.56 mm NATO Color: Black Finish: Anodized Length: 16'' Make: AR-15 Style: Complete Twist: 1-7 Product no.: 100054449
Not available
797.8 GBP 0 £797.80 *
The M4E1 5.56 Upper Receiver features a lightweight ATLAS S-ONE Handguard, durable construction, and options for 16" or 18" barrels, perfect for your build.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 18" RIFLE 12" ATLAS S-ONE HG BLK
832.6 GBP 0 £832.60 *
Not available
Cartridge: 5.56 mm NATO Color: Black Finish: Anodized Length: 18'' Make: AR-15 Style: Complete Twist: 1-7 Product no.: 100054451
Not available
832.6 GBP 0 £832.60 *
589.9 832.6 5 GBP
813.5 GBP £813.50

Prices inclusive of duty & VAT.

Product no.: 100054450

Mfr. No.: APAR700305M7

840014601585 This complete upper includes Aero Precision’s new 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. Aero Precision’s 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. M4E1 Threaded Assembled Upper Receiver Choice of 12” or 15” M-LOK ATLAS S-ONE Handguard 16" 5.56 Mid CMV Barrel, 18” Rifle Barrel Low Profile Gas Block and Mid-Length/Rifle Length Gas Tube Depending on Configuration Product comes assembled This complete upper does not include BCG or Charging Handle 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 Features: 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 1.3” Inside diameter 1.5” Outside diameter Compatible with mil-spec AR15 upper receivers and barrels 16" 5.56 Mid Barrel Features: 5.56 NATO 16" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled Mid-length gas system, .0785 gas port M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider 18" 5.56 Rifle Length Barrel Features: 5.56 Nato 18" Rifle Length Barrel 4150 CrMoV w/ QPQ finish 1/7 twist .750 gas block journal Rifle length gas system M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider
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589.9 832.6 5 GBP
Description Specification Customers reviews Accessories

AERO PRECISION M4E1 5.56 ASSM UPPR 16" MID-LEN 15" M-LOK ATLAS S-ONE HG BLK

813.5 GBP £813.50

Prices inclusive of duty & VAT.

Is a 'Call to order' product.
Requires order by phone

Description:

Upgrade your firearm with the precision and reliability of the Aero Precision M4E1 5.56 Upper Receiver!

This complete upper includes Aero Precision’s new ATLAS S-ONE Handguard! The S-ONE line of handguards is designed with size and weight in mind, providing the perfect addition to your lightweight build.

Key Features:

  • M4E1 Threaded Assembled Upper Receiver
  • Choice of 12” or 15” M-LOK ATLAS S-ONE Handguard
  • 16" 5.56 Mid CMV Barrel, 18” Rifle Barrel
  • Low Profile Gas Block and Mid-Length/Rifle Length Gas Tube Depending on Configuration
  • Product comes assembled
  • This complete upper does not include BCG or Charging Handle
  • 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 Features:

  • 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
  • 1.3” Inside diameter
  • 1.5” Outside diameter
  • Compatible with mil-spec AR15 upper receivers and barrels

16" 5.56 Mid Barrel Features:

  • 5.56 NATO 16" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
  • Mid-length gas system, .0785 gas port
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider

18" 5.56 Rifle Length Barrel Features:

  • 5.56 Nato 18" Rifle Length Barrel
  • 4150 CrMoV w/ QPQ finish
  • 1/7 twist
  • .750 gas block journal
  • Rifle length gas system
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider

Enhance your shooting experience with the Aero Precision M4E1 5.56 Upper Receiver, a perfect blend of innovation, strength, and reliability!



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The M4E1 Complete Upper Receiver includes a 16" 5.56 Mid CMV Barrel and a 15" ATLAS S-ONE Handguard, designed for lightweight and size efficiency with Aero Precision's dependable ATLAS attachment system.
  2. Features include a new enhanced forging for a billet look, M4 Feedramps, .250 takedown pin holes, and compatibility with mil-spec AR15 barrels and receivers.
  3. The complete upper does not come with a BCG or Charging Handle, and offers customization options like the choice of 12” or 15” M-LOK ATLAS S-ONE Handguard and barrel length configurations.

Attributes

  • Cartridge: 
    5.56 mm NATO
  • Colour: 
    Black
  • Contour: -
  • Finish: 
    Anodized
  • Length: 
    16''
  • Style: 
    Complete
  • Twist: 
    1-7
  • Weapon type: 
    AR-15
  • Delivery weight: 1.814kg
  • Shipping height: 102mm
  • Shipping width: 102mm
  • Shipping length: 772mm
  • UPC: 840014601585

Item details

Made in USA
US export classification: I(g)

Customers reviews

Customer ratings (0)

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Variations:

The M4E1 5.56 Assembled Upper features an ATLAS S-ONE Handguard, lightweight design, M4 feed ramps, and options for 16" or 18" barrels, perfect for your build.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 16" MID-LEN 15" M-LOK ATLAS S-ONE HG BLK
813.5 GBP 0 £813.50 *
Not available
Cartridge: 5.56 mm NATO Color: Black Finish: Anodized Length: 16'' Make: AR-15 Style: Complete Twist: 1-7 Product no.: 100054450
Not available
813.5 GBP 0 £813.50 *
The Aero Precision M4E1 5.56 Upper features a lightweight ATLAS S-ONE Handguard, durable build, and options for 16" or 18" barrels, perfect for your AR15.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 11.5" CARBINE 9" ATLAS S-ONE HG BLK
589.9 GBP 0 £589.90 *
Not available
Cartridge: 5.56 mm NATO Color: Black Contour: M4 Finish: Anodized Length: 11.5'' Make: AR-15 Style: Complete Product no.: 100036051
Not available
589.9 GBP 0 £589.90 *
The Aero Precision M4E1 5.56 Upper features a lightweight ATLAS S-ONE Handguard, durable construction, and options for 16" or 18" barrels, perfect for custom builds.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 11.5" CARBINE 9" ATLAS S-ONE HG FDE
609.9 GBP 0 £609.90 *
Not available
Cartridge: 5.56 mm NATO Color: Flat Dark Earth Contour: M4 Finish: Anodized Length: 11.5'' Make: AR-15 Style: Complete Product no.: 100036052
Not available
609.9 GBP 0 £609.90 *
The Aero Precision M4E1 5.56 Upper features a lightweight ATLAS S-ONE Handguard, durable construction, and a choice of 16" or 18" barrels for versatile performance.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 16" MID-LEN 12" M-LOK ATLAS S-ONE HG BLK
797.8 GBP 0 £797.80 *
Not available
Cartridge: 5.56 mm NATO Color: Black Finish: Anodized Length: 16'' Make: AR-15 Style: Complete Twist: 1-7 Product no.: 100054449
Not available
797.8 GBP 0 £797.80 *
The M4E1 5.56 Upper Receiver features a lightweight ATLAS S-ONE Handguard, durable construction, and options for 16" or 18" barrels, perfect for your build.
M4E1 5.56 ASSEMBLED UPPER RECEIVER W/M-LOK ATLAS S-ONE HANDGUARD - M4E1 5.56 ASSM UPPR 18" RIFLE 12" ATLAS S-ONE HG BLK
832.6 GBP 0 £832.60 *
Not available
Cartridge: 5.56 mm NATO Color: Black Finish: Anodized Length: 18'' Make: AR-15 Style: Complete Twist: 1-7 Product no.: 100054451
Not available
832.6 GBP 0 £832.60 *

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