Aero Precision M4E1 Enhanced 8in .300 Blackout Quantum Handguard Complete Upper Receiver

Price Save Up to 15% from $439.99 to $373.99

This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories.


RATING
94.25 /100
  • Design

    Excellent

  • Performance

    Excellent

  • Value for money

    Excellent

  • Feature

    Excellent

Specifications for Aero Precision M4E1 Enhanced 8in .300 Blackout Quantum Handguard Complete Upper Receiver:

Caliber: .300 AAC Blackout
Barrel Length: 8 in
Barrel Twist Rate: 1-7
Handguard Length: 7 in
Gun Rail: M-LOK
Gun Model: AR-15
Weight: 39.84 oz

Features of Aero Precision M4E1 Enhanced 8in .300 Blackout Quantum Handguard Complete Upper Receiver

  • M4E1 Upper Features:
  • Forged from 7075 T6 aluminum
  • Precision machined to M4E1 specs
  • M4 feedramps
  • Matte black hard coat anodized Mil 8625 Type 3 Class 2
  • Laser engraved T-marks (Anodized only)
  • Comes assembled
  • with port door and forward assist installed
  • Accepts standard AR15/M16 components
  • Handguard mounting platform is forged into the receiver
  • Works with Aero Precision handguards but also fits most BAR-system handguards
  • Barrel nut and wrench are included
  • Quantum Handguard Features:
  • 1pc free float design
  • Removable 4-slot picatinny rail section for front sight
  • Built in anti-rotation tabs
  • 7 mounting surfaces for KeyMod accessories
  • 1.78in inside diameter fits most muzzle devices and 1.5in suppressors
  • Compatible with low profile gas blocks
  • 8in .300 Blackout Barrel Features:
  • Length: 8in
  • Twist: 1 in 7
  • Muzzle: 5/8x24 Threaded
  • Material: 4150 Crome Moly Vanadium
  • Finish: QPQ corrosion resistant finish both inside and out
  • Gas Block: .750
  • Gas Port: .109
  • Gas System Length: Pistol
  • Weight: 18oz
  • M4 Barrel Extension
  • HP and MPI Tested
  • Included Accessories:
  • M4E1 Enhanced Assembled Upper Receiver
  • Quantum Handguard of choice
  • 8in .300 Blackout CMV Barrel
  • Low Profile Gas Block and Pistol Length Gas Tube
  • Product comes assembled
  • This assembly does not include BCG or Charging Handle
  • These products may be selected as add-ons under the FINISH YOUR BUILD tab
  • The muzzle brake 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 16in as defined by the ATF for a rifle build.

1-Aero Precision M4E1 Enhanced 8in .300 Blackout Quantum Handguard Complete Upper Receiver
2-Aero Precision M4E1 Enhanced 8in .300 Blackout Quantum Handguard Complete Upper Receiver
3-Aero Precision M4E1 Enhanced 8in .300 Blackout Quantum Handguard Complete Upper Receiver

  • PROS
  • Works as designed. Flawless function.
  • CONS
#Aero Precision

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Comments
Wiley - Add Reply

Good look. Fits my lower tight. After having broke in the barrel it shoot a tight group. Runs great suppressed or not. Aero is always dependable. M-loks are a good fit. The finish looks good. Came with a 3” rail on top.

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Cecil - Add Reply

The Fitment between this upper with my LWRC lower was good. Not tight, not loose. I put 300 rounds through it during one trip to the range. I shot 220g, 147g, and 124g rounds through it and there were ZERO issues. The rounds fed and ejected as expected. I dii ok T know if this is important for the review but Incase it is: I did swap my BCG and charging handle over from another upper I had. After inspection I found no abnormal wear or markings that weren’t present before use. I would definitely recommend this product.

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