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Rifle Parts Receiver Parts Receivers Upper Receivers AERO PRECISION M4E1 5.56 NATO ASSEM UPPR RCVR M4 16" BBL MID-LENGTH BLACK Support

The Aero Precision M4E1 5.56mm Mid-Length Upper features a forged receiver, enhanced M-LOK handguard, and reliable gas system for superior performance.

AERO PRECISION M4E1 5.56 NATO ASSEM UPPR RCVR M4 16" BBL MID-LENGTH BLACK

815421023305 100025509

Filters:

Variations
Filters:
Variations:

Variations:

The Aero Precision M4E1 5.56mm Mid-Length Upper features a forged receiver, enhanced M-LOK handguard, and reliable gas system for superior performance.
M4E1 ASSEMBLED UPPER RECEIVER 5.56 MID-LENGTH - M4E1 5.56 NATO ASSEM UPPR RCVR M4 16" BBL MID-LENGTH BLACK
789.9 GBP 0 £789.90 *
Not available
Cartridge: 5.56 mm NATO Color: Black Contour: M4 Finish: Anodized Length: 16'' Make: AR-15 Style: Assembled Product no.: 100025509
Not available
789.9 GBP 0 £789.90 *
The Aero Precision M4E1 5.56mm Mid-Length Upper offers enhanced reliability, a sleek forged receiver, and an accessory-ready handguard for optimal customization.
M4E1 ASSEMBLED UPPER RECEIVER 5.56 MID-LENGTH - M4E1 5.56 NATO ASSEM UPPR RCVR M4 14.5" BBL MID-LENGTH BLACK
779.9 GBP 0 £779.90 *
Not available
Cartridge: 5.56 mm NATO Color: Black Contour: M4 Finish: Anodized Length: 14.5'' Make: AR-15 Style: Assembled Product no.: 100025506
Not available
779.9 GBP 0 £779.90 *
779.9 789.9 2 GBP
789.9 GBP £789.90

Prices inclusive of duty & VAT.

Product no.: 100025509

Mfr. No.: APAR640251M7

815421023305 Aero Precision’s M4E1 5.56mm Mid-Length Upper Receiver comes fully assembled, lacking only a bolt/carrier group and charging handle - the two components most often replaced by customizers. "Mid-Length" refers to the gas tube, which is longer than the standard carbine tube to slow down gas velocity and actually improve reliability in cycling. This is actually a carbine upper, available with either a military 14.5" or civilian 16" barrel (see Gun Tech Note below). The core of the M4E1 5.56mm Mid-Length Upper Receiver is Aero’s forged M4E1 receiver that combines the looks of a machined receiver with "mil-spec" parts compatibility (including BCG and charging handle). It’s mated to Aero’s latest Gen 2 Enhanced M-LOK Handguard to form a monolithic assembly with a full-length Picatinny top rail, and plenty of attachment points for M-LOK-accessories. QD sling swivel sockets at the 3/6/9 o’clock positions. The extended handguard covers the low-profile gas block. Texturing milled into the flats gives you an enhanced grasping surface - plus, it adds to your gun’s unique appearance. Forged 7075 T6 aluminum receiver, Mil 8625 Type 3 Class 2 hardcoat anodized Ejection port cover & forward assist installed 4150 chrome-moly-vanadium barrel, 1-7" rifling, black QPQ finish Chambered for 5.56x45 NATO; accepts .223 Remington, too MID-LENGTH gas system Handguard: 1.78" inside diameter clears most muzzle devices and 1.5" suppressors A2-style flash suppressor installed - NOT pinned or welded 1/2"-28 tpi muzzle threads .250" dia. pivot/takedown pin holes Bolt/carrier group & charging handle NOT included All NFA rules apply Brownells Gun Tech™ Note: The M4E1 5.56mm Mid-Length Upper Receiver is available with a 14.5" or 16" barrel. The flash suppressor on the 14.5" barrel is not pinned or welded in place. Per the National Firearms Act, the muzzle device MUST be pinned and welded to achieve the minimum 16" OAL for a civilian rifle build. The 16" barreled upper has sufficient barrel length to meet NFA requirements without permanently attaching the flash suppressor.
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779.9 789.9 2 GBP
Description Specification Customers reviews Accessories

AERO PRECISION M4E1 5.56 NATO ASSEM UPPR RCVR M4 16" BBL MID-LENGTH BLACK

789.9 GBP £789.90

Prices inclusive of duty & VAT.

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

Description:

Discover the M4E1 ASSEMBLED UPPER RECEIVER – the ultimate upgrade for your firearm!

Aero Precision’s M4E1 5.56mm Mid-Length Upper Receiver comes fully assembled, lacking only a bolt/carrier group and charging handle – the two components most often replaced by customizers. "Mid-Length" refers to the gas tube, which is longer than the standard carbine tube to slow down gas velocity and actually improve reliability in cycling. This is actually a carbine upper, available with either a military 14.5" or civilian 16" barrel.

Key Features:

  • Forged Receiver: The core of the M4E1 is Aero’s forged M4E1 receiver that combines the looks of a machined receiver with "mil-spec" parts compatibility (including BCG and charging handle).
  • Enhanced Handguard: Mated to Aero’s latest Gen 2 Enhanced M-LOK Handguard to form a monolithic assembly with a full-length Picatinny top rail and plenty of attachment points for M-LOK-accessories.
  • QD Sling Swivel Sockets: Located at the 3/6/9 o’clock positions for easy attachment.
  • Low-Profile Gas Block: The extended handguard covers the low-profile gas block.
  • Textured Grasping Surface: Milled texturing provides an enhanced grasping surface, adding to your gun’s unique appearance.

Specifications:

  • Receiver Material: Forged 7075 T6 aluminum, Mil 8625 Type 3 Class 2 hardcoat anodized
  • Ejection Port Cover & Forward Assist: Installed
  • Barrel: 4150 chrome-moly-vanadium, 1-7" rifling, black QPQ finish
  • Chambered for: 5.56x45 NATO; accepts .223 Remington
  • Gas System: MID-LENGTH
  • Handguard: 1.78" inside diameter clears most muzzle devices and 1.5" suppressors
  • Flash Suppressor: A2-style installed - NOT pinned or welded
  • Muzzle Threads: 1/2"-28 tpi
  • Pivot/Takedown Pin Holes: .250" dia.
  • Note: Bolt/carrier group & charging handle NOT included

All NFA rules apply.

Brownells Gun Tech™ Note:

The M4E1 5.56mm Mid-Length Upper Receiver is available with a 14.5" or 16" barrel. The flash suppressor on the 14.5" barrel is not pinned or welded in place. Per the National Firearms Act, the muzzle device MUST be pinned and welded to achieve the minimum 16" OAL for a civilian rifle build. The 16" barreled upper has sufficient barrel length to meet NFA requirements without permanently attaching the flash suppressor.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The Aero Precision M4E1 5.56mm Mid-Length Upper Receiver is fully assembled but does not include the bolt/carrier group and charging handle.
  2. It features a mid-length gas system for improved reliability, a Gen 2 Enhanced M-LOK Handguard, and is made from forged 7075 T6 aluminum with a 16" barrel to meet NFA requirements.
  3. This upper receiver is compatible with mil-spec parts and is designed to accept both 5.56x45 NATO and .223 Remington cartridges.

Attributes

  • Cartridge: 
    5.56 mm NATO
  • Colour: 
    Black
  • Contour: 
    M4
  • Finish: 
    Anodized
  • Length: 
    16''
  • Style: 
    Assembled
  • Weapon type: 
    AR-15
  • Delivery weight: 2.177kg
  • Shipping height: 109mm
  • Shipping width: 109mm
  • Shipping length: 778mm
  • UPC: 815421023305

Item details

Made in USA
US export classification: I(g)

Customers reviews

Customer ratings (0)

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Variations:

The Aero Precision M4E1 5.56mm Mid-Length Upper features a forged receiver, enhanced M-LOK handguard, and reliable gas system for superior performance.
M4E1 ASSEMBLED UPPER RECEIVER 5.56 MID-LENGTH - M4E1 5.56 NATO ASSEM UPPR RCVR M4 16" BBL MID-LENGTH BLACK
789.9 GBP 0 £789.90 *
Not available
Cartridge: 5.56 mm NATO Color: Black Contour: M4 Finish: Anodized Length: 16'' Make: AR-15 Style: Assembled Product no.: 100025509
Not available
789.9 GBP 0 £789.90 *
The Aero Precision M4E1 5.56mm Mid-Length Upper offers enhanced reliability, a sleek forged receiver, and an accessory-ready handguard for optimal customization.
M4E1 ASSEMBLED UPPER RECEIVER 5.56 MID-LENGTH - M4E1 5.56 NATO ASSEM UPPR RCVR M4 14.5" BBL MID-LENGTH BLACK
779.9 GBP 0 £779.90 *
Not available
Cartridge: 5.56 mm NATO Color: Black Contour: M4 Finish: Anodized Length: 14.5'' Make: AR-15 Style: Assembled Product no.: 100025506
Not available
779.9 GBP 0 £779.90 *

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