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The Aero Precision M4E1 5.56mm 18" Rifle Upper features a longer barrel for enhanced velocity, a rifle-length gas system for reliability, and a customizable design.

AERO PRECISION M4E1 5.56MM ASSEM UPPR RCVR GOVT 18" BBL RIFLE-LENGTH BLK

815421023312 100025511

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The M4E1 5.56mm 18" Rifle Upper Receiver features an 18" barrel and rifle-length gas system for increased bullet velocity and smoother cycling.
  2. It comes with a Gen 2 Enhanced M-LOK Handguard for a seamless accessory mounting platform and does not include a bolt/carrier group and charging handle.
  3. The upper receiver is compatible with standard AR-15 "mil-spec" parts and is forged from 7075 T6 aluminum with a hardcoat anodized finish.

Attributes

  • Cartridge:
    5.56 mm NATO
  • Colour:
    Black
  • Contour:
    M4
  • Finish:
    Anodized
  • Length:
    18''
  • Style:
    Assembled
  • Weapon type:
    AR-15
  • Delivery weight: 2.268kg
  • Shipping height: 109mm
  • Shipping width: 109mm
  • Shipping length: 778mm
  • UPC: 815421023312

Item details

Made in USA
US export classification: I(g)
  • Specifications:
  • Cartridge: 5.56 mm NATO
  • Color: Black
  • Contour: M4
  • Finish: Anodized
  • Length: 18''
  • Make: AR-15
  • Style: Assembled
799.9 799.9 1 GBP
799.9 GBP £799.90

Prices inclusive of duty & VAT.

Product no.: 100025511

Mfr. No.: APAR640251M8

815421023312 The M4E1 5.56mm 18" Rifle Upper Receiver adds two important benefits to Aero Precision’s M4E1 carbine upper. First, the longer 18" barrel imparts extra velocity to the bullet with a very small addition to the rifle’s OAL. Second, the longer rifle-length gas system slows down gas velocity for gentler cycling that leads to improved reliability and reduced wear on moving parts and the receiver. The result? Rifle-like performance - and versatility - in a carbine-sized package. The Aero Precision M4E1 5.56mm 18" Rifle Upper Receiver delivers all the other benefits of Aero’s M4E1 receiver line. The bolt/carrier group and charging handle are omitted so you can customize those parts to suit your needs. (Why pay for parts you’re only going to replace anyway?) The forged M4E1 receiver has the unique appearance of a custom "billet" receiver, yet accepts standard AR-15 "mil-spec" parts. Forged 7075 T6 aluminum receiver, Mil 8625 Type 3 Class 2 hardcoat anodized Ejection port cover & forward assist installed .250" dia. pivot/takedown pin holes 4150 chrome-moly-vanadium barrel, 1-7" rifling, black QPQ finish Chambered for 5.56x45 NATO; accepts .223 Remington, too A2-style flash suppressor - not pinned or welded RIFLE-LENGTH gas system with low-profile gas block 15" OAL M-LOK handguard installed Handguard: 1.78" inside diameter clears most muzzle devices and 1.5" suppressors Bolt/carrier group & charging handle NOT included The Aero Precision M4E1 5.56mm 18" Rifle Upper Receiver comes with Aero’s Gen 2 Enhanced M-LOK Handguard installed to form a solid, monolithic accessory mounting platform. The uninterrupted full-length Picatinny top rail runs from the rear of the receiver across the entire length of the 15" handguard without a gap. Plenty of M-LOK accessory attachment slots on the handguard, plus QD sling swivel sockets. Texture milled into the flats give you an excellent hold - and enhance to your gun’s unique appearance.
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799.9 799.9 1 GBP
Description Specification Customers reviews Accessories

AERO PRECISION M4E1 5.56MM ASSEM UPPR RCVR GOVT 18" BBL RIFLE-LENGTH BLK

799.9 GBP £799.90

Prices inclusive of duty & VAT.

Is a 'Call to order' product.

Description:

Experience enhanced performance with the M4E1 5.56mm 18" Rifle Upper Receiver.

The M4E1 5.56mm 18" Rifle Upper Receiver from Aero Precision provides significant advantages for your shooting experience. This upper receiver is designed to enhance velocity and reliability, making it a top choice for firearm enthusiasts.

Key Features:

  • Longer Barrel: The 18" barrel increases bullet velocity with minimal impact on the overall length of the rifle.
  • Rifle-Length Gas System: This system slows down gas velocity for smoother cycling, improving reliability and reducing wear on moving parts.
  • Customizable Receiver: The M4E1 receiver allows you to personalize your build, as the bolt/carrier group and charging handle are not included.
  • Forged Construction: Made from 7075 T6 aluminum and Mil 8625 Type 3 Class 2 hardcoat anodized for durability.
  • Accessory Compatibility: Accepts standard AR-15 "mil-spec" parts, while the unique design mimics a custom "billet" receiver.
  • Enhanced Handguard: Comes with Aero’s Gen 2 Enhanced M-LOK Handguard, providing a solid platform for mounting accessories.

Specifications:

  • Barrel: 4150 chrome-moly-vanadium, 1-7" rifling, black QPQ finish
  • Chambered for: 5.56x45 NATO; also accepts .223 Remington
  • Gas System: Rifle-length with low-profile gas block
  • Handguard Length: 15" OAL with M-LOK attachment slots
  • Pivot/Takedown Pin Holes: .250" diameter
  • Flash Suppressor: A2-style, not pinned or welded

With features designed for both performance and versatility, the Aero Precision M4E1 5.56mm 18" Rifle Upper Receiver is the perfect addition to your firearm collection. Enjoy a rifle-like experience in a carbine-sized package.



Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The M4E1 5.56mm 18" Rifle Upper Receiver features an 18" barrel and rifle-length gas system for increased bullet velocity and smoother cycling.
  2. It comes with a Gen 2 Enhanced M-LOK Handguard for a seamless accessory mounting platform and does not include a bolt/carrier group and charging handle.
  3. The upper receiver is compatible with standard AR-15 "mil-spec" parts and is forged from 7075 T6 aluminum with a hardcoat anodized finish.

Attributes

  • Cartridge:
    5.56 mm NATO
  • Colour:
    Black
  • Contour:
    M4
  • Finish:
    Anodized
  • Length:
    18''
  • Style:
    Assembled
  • Weapon type:
    AR-15
  • Delivery weight: 2.268kg
  • Shipping height: 109mm
  • Shipping width: 109mm
  • Shipping length: 778mm
  • UPC: 815421023312

Item details

Made in USA
US export classification: I(g)

Customers reviews

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