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The Aero Precision M4E1 .300 Blackout Upper offers customizable lengths, M-LOK handguards, and a pistol-length gas system for enhanced tactical performance.

AERO PRECISION M4E1 .300 BO ASSEMBL UPPR RCVR M4 10" BBL PISTOL-LENGTH BLK

815421022674 100025513

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Variations:

Cartridge: 300 AAC Blackout Color: Black Contour: M4 Finish: Anodized Length: 10'' Make: AR-15 Style: Assembled Twist: 1-7 Product no.: 100025513
Not available
739.9 GBP 0 £739.90 *
Cartridge: 300 AAC Blackout Color: Black Contour: M4 Finish: Anodized Length: 8'' Make: AR-15 Style: Assembled Twist: 1-7 Product no.: 100025512
Not available
719.9 GBP 0 £719.90 *
Cartridge: 300 AAC Blackout Color: Black Contour: M4 Finish: Anodized Length: 16'' Make: AR-15 Style: Assembled Twist: 1-7 Product no.: 100025514
Not available
799.9 GBP 0 £799.90 *
719.9 799.9 3 GBP
739.9 GBP £739.90

Prices inclusive of duty & VAT.

Product no.: 100025513

Mfr. No.: APAR640221M4

815421022674 From Aero Precision, the AR-15 M4E1 .300 Blackout Assembled Upper Receivers. Chambered in 300 Blackout, the upper is finished with black anodizing and available in three lengths, each with different length handguards. This upper does not come with the charging handle or bolt carrier group, allowing the user to personalize their upper receiver even more! The Aero Precision Assembled Upper Receiver also features: M-LOK EM-7 7” for 8” barrel, 9” handguard for 10” barrel, 15” handguard for 16” barrel 8”, 10”, and 16” carbine length chrome moly barrel Pistol length gas system w/ low profile gas block Standard A2 flash hider - not pinned or welded Bolt Carrier Group and Charging Handle are NOT included Made in the USA The Aero Precision AR-15 8", 10", or 16” Assembled Upper Receiver is a great choice for your next AR-15 build! The flash hider that comes with this complete upper receiver is NOT pinned nor welded to this barrel. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16"" as defined by the ATF for a rifle build.
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719.9 799.9 3 GBP
Description Specification Customers reviews Accessories

AERO PRECISION M4E1 .300 BO ASSEMBL UPPR RCVR M4 10" BBL PISTOL-LENGTH BLK

739.9 GBP £739.90

Prices inclusive of duty & VAT.

Is a 'Call to order' product.

Description:

Elevate your AR-15 build with the M4E1 Assembled Upper Receiver!

From Aero Precision, the AR-15 M4E1 .300 Blackout Assembled Upper Receivers offer versatility and customization for your firearm needs. Chambered in .300 Blackout, this upper features a sleek black anodized finish and is available in three lengths, each paired with different handguard options.

Key Features:

  • M-LOK EM-7 7” handguard for 8” barrel
  • 9” handguard for 10” barrel
  • 15” handguard for 16” barrel
  • 8”, 10”, and 16” carbine length chrome moly barrel
  • Pistol length gas system with low profile gas block
  • Standard A2 flash hider – not pinned or welded
  • Note: Bolt Carrier Group and Charging Handle are NOT included
  • Made in the USA

The Aero Precision AR-15 8", 10", or 16” Assembled Upper Receiver is an excellent choice for your next AR-15 build! Please note that the flash hider included with this complete upper receiver is NOT pinned nor welded to the barrel. According to the National Firearms Act, the muzzle brake MUST be pinned and welded to comply with the necessary 16" requirement as defined by the ATF for a rifle build.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The Aero Precision M4E1 Assembled Upper Receiver is chambered in .300 Blackout and comes in three barrel lengths with corresponding handguards but does not include a bolt carrier group or charging handle.
  2. It features a pistol-length gas system, standard A2 flash hider, and is made in the USA with a black anodized finish.
  3. The upper receiver requires the flash hider to be pinned and welded for rifle builds to comply with the National Firearms Act.

Attributes

  • Cartridge:
    300 AAC Blackout
  • Colour:
    Black
  • Contour:
    M4
  • Finish:
    Anodized
  • Length:
    10''
  • Style:
    Assembled
  • Twist:
    1-7
  • Weapon type:
    AR-15
  • Delivery weight: 1.52kg
  • Shipping height: 108mm
  • Shipping width: 114mm
  • Shipping length: 625mm
  • UPC: 815421022674

Item details

Made in USA
US export classification: I(g)

Customers reviews

Customer ratings (0)

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Variations:

Cartridge: 300 AAC Blackout Color: Black Contour: M4 Finish: Anodized Length: 10'' Make: AR-15 Style: Assembled Twist: 1-7 Product no.: 100025513
Not available
739.9 GBP 0 £739.90 *
Cartridge: 300 AAC Blackout Color: Black Contour: M4 Finish: Anodized Length: 8'' Make: AR-15 Style: Assembled Twist: 1-7 Product no.: 100025512
Not available
719.9 GBP 0 £719.90 *
Cartridge: 300 AAC Blackout Color: Black Contour: M4 Finish: Anodized Length: 16'' Make: AR-15 Style: Assembled Twist: 1-7 Product no.: 100025514
Not available
799.9 GBP 0 £799.90 *

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