Brownells UK - World's Largest Supplier of Gun Parts, Gunsmith Tools & Shooting Accessories United Kingdom

AERO PRECISION
M4E1 ASSEMBLED UPPER RECEIVER .300 BLACKOUT BLACK

815421022438 100025512
Enhanced Tactical Upper for a Custom AR Pistol / SBR / Carbine Build
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.
722.4 771.4 3 GBP
Product no.: 100025512
AERO PRECISION M4E1 ASSEMBLED GEN 2 UPPER RECEIVER 8 PISTOL LENGTH
Mfr Part: APAR640211M1 815421022438 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.
722.4 GBP 0 £722.40 *
Is a 'Call to order' product.
Not available.
Specs: Cartridge: 300 AAC Blackout Color: Black Contour: M4 Finish: Anodized Length: 8'' Make: AR-15 Style: Assembled Twist: 1-7

Restrictions

  • Is a 'Call to order' product.

Top takeaways

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

Attributes

Cartridge: 300 AAC Blackout Colour: Black Contour: M4 Finish: Anodized Length: 8'' Make: AR-15 Style: Assembled Twist: 1-7 Delivery weight: 1.429kg

Item details

Made in USA
US export classification: I(g)



Product no.: 100025514
AERO PRECISION M4E1 ASSEMBLED GEN 2 UPPER RECEIVER 16 PISTOL LENGTH
Mfr Part: APAR640251M14 815421020946 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.
771.4 GBP 10 £771.40 *
Is a 'Call to order' product.
Not available.
Specs: Cartridge: 300 AAC Blackout Color: Black Contour: M4 Finish: Anodized Length: 16'' Make: AR-15 Style: Assembled Twist: 1-7
Product no.: 100025513
AERO PRECISION M4E1 ASSEMBLED GEN 2 UPPER RECEIVER 10 PISTOL LENGTH
Mfr Part: 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.
752.1 GBP 2 £752.10 *
Is a 'Call to order' product.
Not available.
Specs: Cartridge: 300 AAC Blackout Color: Black Contour: M4 Finish: Anodized Length: 10'' Make: AR-15 Style: Assembled Twist: 1-7

🔫 Build your dream AR-15 with Aero Precision's M4E1 Assembled Upper Receiver in .300 Blackout! Choose from 8'', 10'', or 16'' lengths. Customize now! 🛠️🎯

Enhanced Tactical Upper for a Custom AR Pistol / SBR / Carbine Build
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.