Aero Precision M4E1 16″ 5.56 Mid-Length Complete Upper Receiver

This Complete Upper includes Aero’s 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.

Includes:

• M4E1 Enhanced Assembled Upper Receiver.
• Gen 2 Enhanced Handguard.
• 16″ 5.56 Mid-Length CMV Barrel.
• Low Profile Gas Block and Mid Length Gas Tube.
• The 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 the port door and forward assist installed.
• Accepts standard AR15/M16 components.
• The 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.
• 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.

16″ 5.56 Mid-Length Barrel Features:

• 5.56 Nato 16″ Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled.
• .750 gas block journal.
• Midlength gas system, .0785 gas port.
• M4 Feed Ramp Extension.
• HP and MPI tested.
• Standard A2 flash hider.