M4E1 Complete Upper, 16" .300 Blackout Barrel, EM-15 Gen 2 Handguard - Anodized Black

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The M4E1 Complete Upper, 16" .300 Blackout includes a 15" M-LOK Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail.

Product Description

M4E1 Enhanced Assembled Upper Receiver Features:

15" M-LOK Enhanced Handguard

.300 Blackout CMV Barrel Low Profile Gas Block and Pistol Length Gas Tube

Product comes assembled

This complete upper does not include BCG or Charging Handle

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

Gen 2 Enhanced Handguard Features:

1pc free float design, built in anti-rotation tabs, Scalloped rails, and continuous top rail

1.78" inside diameter fits most muzzle devices and 1.5" suppressors

Compatible with low profile gas blocks

Gen 2 Feature - Quick disconnect sling socket at the 3, 6 and 9 o'clock positions

Gen 2 Feature - Additional milling along flats to aid with gripping and add visual appeal

Gen 2 Feature - New profile for the continuous picatinny top rail

Barrel Features:

Chamber: .300 Blackout

Length: 16"

Material: 4150 Chome Moly Vanadium

Finish: QPQ Corrosion Resistant Finish

Gas System Length: Pistol

Gas Block Journal: .750"

Twist Rate: 1:7 Inches

Muzzle: 5/8x24 Threaded

Weight: 29oz

Other; M4 Feed Ramp Extension, HP and MPI Tested, Standard A2 Flash Hider


  • 15" Enhanced M-LOK Handguard
  • 16" .300 Blackout Barrel with Pistol Length Gas System
  • Product comes assembled, but does not include a Bolt Carrier Group or Charging Handle

Aero Precision USA
3.5 lbs
Sight Style
Front Only
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